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NASA CNEOS

• News
  2024-12-20
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• NASA Study: Asteroid’s Orbit, Shape Changed After DART Impact
  2024-03-19
  After NASA’s historic Double Asteroid Redirection Test, a JPL-led study has shown that the shape of asteroid Dimorphos has changed and its orbit has shrunk.
• NASA System Predicts Impact of a Very Small Asteroid Over Germany
  2024-01-24
  The Scout impact assessment system calculated where and when the asteroid 2024 BX1 would impact Earth’s atmosphere, providing a useful demonstration of planetary defense capability.
• CNEOS Predicts Another Small Asteroid Impact, This One over Northwestern France
  2023-02-14
  Another tiny asteroid on a collision course with Earth was detected over the weekend, and JPL’s CNEOS Scout system accurately predicted where and when the impact would happen, well before it actually occurred.
• NASA System Predicts Small Asteroid to Pass Close by Earth This Week
  2023-01-25
  On Thursday, Jan. 26, a small near-Earth asteroid will have a very close encounter with our planet. Designated 2023 BU, the asteroid will zoom over the southern tip of South America at about 4:27 p.m. PST (7:27 p.m. EST) only 2,200 miles (3,600 kilometers) above the planet’s surface and well ...
• NASA Program Predicted Impact of Small Asteroid Over Ontario, Canada
  2022-11-22
  In the early hours of Saturday, Nov. 19, the skies over southern Ontario, Canada, lit up as a tiny asteroid harmlessly streaked across the sky high in Earth’s atmosphere, broke up, and likely scattered small meteorites over the southern coastline of Lake Ontario. The fireball wasn’t a surprise. Roughly 1 ...
• US Space Force Releases Decades of Bolide Data to NASA for Planetary Defense Studies
  2022-04-07
  Hosted by JPL’s Center for Near Earth Object Studies, the data can be used by the science community to better understand how asteroids break up when entering the atmosphere.
• Updated Calculations Refine the Impact Probability for (29075) 1950 DA
  2022-03-29
  (29075) 1950 DA is a kilometer-sized asteroid that will make a close approach to Earth in 2880 and, because of the corresponding impact probability and size, has ranked at the top of the Sentry risk list since 2014.
• NASA System Predicts Impact of Small Asteroid
  2022-03-15
  A small asteroid hit Earth’s atmosphere over the Norwegian Sea before disintegrating on March 11, 2022. But this event wasn’t a complete surprise: Astronomers knew it was on a collision course, predicting exactly where and when the impact would happen.
• NASA’s Next-Generation Asteroid Impact Monitoring System Goes Online
  2021-12-06
  To date, nearly 28,000 near-Earth asteroids (NEAs) have been found by survey telescopes that continually scan the night sky, adding new discoveries at a rate of about 3,000 per year. But as larger and more advanced survey telescopes turbocharge the search over the next few years, a rapid uptick in ...

NASA Jet Propulsilon Laboratory:

• New Data Confirm 2020 SO to Be the Upper Centaur Rocket Booster From the 1960's
  2020-12-02
  The object, discovered in September by astronomers searching for near-Earth asteroids, garnered interest in the planetary science community due to its size and unusual orbit.
• MOXIE Could Help Future Rockets Launch Off Mars
  2020-11-24
  NASA's Perseverance rover carries a device to convert Martian air into oxygen that, if produced on a larger scale, could be used not just for breathing, but also for fuel.
• Independent Review Indicates NASA Prepared for Mars Sample Return Campaign
  2020-11-10
  A report, released Tuesday, concludes that the agency is well positioned for its ambitious plan to bring samples back from the Red Planet for further study on Earth.
• Impact Craters Reveal Details of Titan's Dynamic Surface Weathering
  2020-10-29
  New research on nine craters of Saturn's largest moon provides more details about how weathering affects the evolution of the surface - and what lies beneath.
• NASA InSight's 'Mole' Is Out of Sight
  2020-10-16
  Now that the heat probe is just below the Martian surface, InSight's arm will scoop some additional soil on top to help it keep digging so it can take Mars' temperature.
• This Transforming Rover Can Explore the Toughest Terrain
  2020-10-13
  Made of a pair of two-wheeled vehicles, NASA's DuAxel is designed to descend crater sides and near-vertical cliffs on the Moon, Mars, and beyond.
• NASA's Perseverance Rover Will Peer Beneath Mars' Surface
  2020-10-08
  The agency's newest rover will use the first ground-penetrating radar instrument on the Martian surface to help search for signs of past microbial life.
• AI Is Helping Scientists Discover Fresh Craters on Mars
  2020-10-01
  It's the first time machine learning has been used to find previously unknown craters on the Red Planet.
• School Bus-Size Asteroid to Safely Zoom Past Earth
  2020-09-22
  Roughly 15 to 30 feet wide, the object will make its closest approach on Sept. 24.
• Comet Discovered to Have Its Own Northern Lights
  2020-09-21
  An atmospheric light show previously relegated to planets and Jupiter moons is found on comet using data from ESA's Rosetta spacecraft.

Space.com

• The Ursid meteor shower peaks this weekend. Here's what to expect from the final 'shooting stars' of 2024
  2024-12-20
  The last meteor shower of the year peaks in the early morning hours of Dec. 22.
• BepiColombo spacecraft flies by Mercury, sees volcanic plain and impact craters
  2024-12-19
  The BepiColombo spacecraft has captured the 1st mid-infrared portrait of Mercury.

Astronomy Now

• The Dark Tower
  2024-11-03
  This eerie, dark silhouette is a cometary globule designated GN 16.43.7.01. Despite their name, cometary globules have nothing to do with comets, beyond having a similar shape of a dusty head with a tail.
• Comet C/2023 A3 (Tsuchinshan-ATLAS) emerges bright in UK’s evening sky
  2024-10-12
  Following month’s of speculation, C/2023 A3 (Tsuchinshan-ATLAS) has emerged into the UK’s evening sky as a bright comet in the afterglow of the setting Sun.

Univere Today

• Where’s the Most Promising Place to Find Martian Life?
  2024-12-22
  New research suggests that our best hopes for finding existing life on Mars isn’t on the surface, but buried deep within the crust. Several years ago NASA’s Curiosity rover measured traces of methane in the Martian atmosphere at levels several times the background. But a few months later, the methane ...

EarthSky

• Chinese rocket disintegrates over the Caribbean
  2024-12-20
  On December 19, 2024, a Chinese rocket disintegrated over the Caribbean, and meteor cameras on Puerto Rico captured multiple views of the event. The post Chinese rocket disintegrates over the Caribbean first appeared on EarthSky.
• 2024 Ursid meteor shower: All you need to know
  2024-12-20
  Ursid meteor shower viewing info for 2024. The best time to watch is before the moon rises around midnight on the evening of December 21. The post 2024 Ursid meteor shower: All you need to know first appeared on EarthSky.
• Moon’s largest crater is rounder than 1st thought
  2024-12-19
  The South Pole-Aitken basin is the moon's largest crater. Scientists have thought it was oval-shaped, but a new study suggests it's more circular. The post Moon’s largest crater is rounder than 1st thought first appeared on EarthSky.

The Planetary Society

• Are we there yet?
  2024-12-20
  Perseverance makes it to the Jezero Crater rim, and we’re antsy to start another year of space exploration.
• How to spot Comet C/2024 G3 (ATLAS)
  2024-12-18
  Catch this once-in-a-lifetime comet over the next few weeks.
• Twister, but make it magnetic
  2024-11-29
  A Jovian storm has its roots in a magnetic vortex, life finds a way into an asteroid sample, and more this week in space.
• Ripples and rivers
  2024-11-15
  Liquids do all kinds of interesting things on planetary surfaces, from creating rippled impact craters to streaming out from under carbon dioxide glaciers.
• Twinsies!
  2024-10-11
  Asteroids that come in pairs, matching volcanic features on Mars and Earth, and the potential space policies of two administrations.
• Hera launches to study the aftermath of an asteroid deflection test
  2024-10-07
  The European Space Agency’s Hera spacecraft launched on Oct. 7, 2024, from Cape Canaveral, Florida. It will travel to the Didymos-Dimorphos asteroid system to study the aftermath of the first-ever field test of an asteroid deflection technique.
• Cloudy skies, smooth sailing
  2024-09-27
  A Martian cloud atlas, LightSail wins big, and multiple missions coast toward launch.
• The Hera launch: What to expect
  2024-09-26
  The European Space Agency (ESA) is preparing to launch a mission to study the aftermath of DART's impact on the asteroid moonlet Dimorphos.
• New insights into asteroid properties: A STEP Grant update
  2024-09-13
  A Planetary Society-funded project to understand asteroids achieved its main goals and scientific objectives this year.
• Wow! Boom! Ultra cool!
  2024-08-23
  The “Wow!" signal has a new explanation, and an ultra-cool experiment advances quantum sensing in space. Plus, making an asteroid go “boom!” might work, depending on the circumstances.

Space Daily

• Massive eruptions did not trigger dinosaur extinction
  2024-12-22
  Berlin, Germany (SPX) Dec 20, 2024 Massive volcanic eruptions in India, once theorized as a potential cause of dinosaur extinction, likely played a minimal role in their demise, according to new research by climate scientists at Utrecht University and the University of Manchester. Their findings suggest that while these eruptions caused ...
• How to find a comet before it hits Earth
  2024-12-22
  Flagstaff AZ (SPX) Dec 20, 2024 Q: How do you find a comet that could pose a threat to Earth but hasn't passed our planet in the last 200 years or more? A: You look for its footprint. This is the basis of research led by Samantha Hemmelgarn, a first-year doctoral ...

The Space Review

• The future of robotic Mars exploration
  2024-12-16
  Last week, NASA unveiled a long-term plan for robotic exploration of Mars, including work to prepare for later human missions. Jeff Foust reports on the plan as well as ongoing efforts to revamp the Mars Sample Return program.
• Review: How to Kill an Asteroid
  2024-11-18
  Planetary defense has gone from a relatively fringe topic with little funding to one with NASA missions demonstrating the ability to change an asteroid's orbit. Jeff Foust reviews a book that examines those efforts to detect and defend Earth from asteroids, and the need to do more.
• The trials and tribulations of Hera
  2024-10-14
  ESA last week launched its Hera mission to the same asteroid that NASA's DART spacecraft collided with two years ago. Jeff Foust reports on the struggles the Hera project faced getting the spacecraft launched, from funding challenges to a hurricane.
• An alternative Mars Sample Return program
  2024-08-19
  NASA is weighing different approaches to its Mars Sample Return program to lower its costs and speed up the return of samples. Dale Skran advocates for an approach that ties the effort more closely to future human exploration of the Red Planet.
• Review: The Asteroid Hunter
  2024-05-06
  Last September NASA's OSIRIS-REx spacecraft successfully returned samples from the asteroid Bennu, seven years after its launch. Jeff Foust reviews a book by the mission's principal investigator that describes the long effort to develop the mission and how it overcame obstacles along the way.
• NASA looks for an MSR lifeline
  2024-04-29
  Mars scientists hoped they would have a better idea of when and how they would get samples back from Mars after NASA completed an internal study of the Mars Sample Return program. Instead, as Jeff Foust reports, NASA is now turning to industry for help on how to reduce the ...
• MSR at serious risk
  2024-02-12
  Concerns about the budget and plans for NASA's Mars Sample Return (MSR) program came to a head last week when JPL laid off more than 500 employees, citing budget uncertainty about the program. Jeff Foust reports on the issues that have put the future of MSR into question for some.
• The case for a fleet of Martian helicopters
  2024-02-05
  Ingenuity, whose mission ended last month, was a first-of-its-kind Mars helicopter with no guarantees more will follow soon. Ari Allyn-Feuer discusses how sending a large number of similar helicopters could advance Martian exploration in novel ways.
• A capsule's fall marks the start of Asteroid Autumn
  2023-09-25
  On Sunday, NASA's OSIRIS-REx spacecraft returned to Earth, dropping off a capsule containing samples collected from the asteroid Bennu. Jeff Foust reports on the success of the first part of NASA's "Asteroid Autumn" that includes a launch and a flyby.
• Review: Interstellar
  2023-09-11
  Last month, a paper claimed to have found evidence for interstellar meteorites at the bottom of the Pacific, a claim other scientists have treated skeptically. Jeff Foust review a book by the scientist who is the lead author of that study and other efforts using science to look for interstellar ...

Phys.org

• Saturday Citations: Chicxulub meteorite found guilty; Good news and bad news for LLMs
  2024-12-21
  It's the last week before Christmas and not a creature is stirring, not even a mouse model bred to exhibit characteristics of ADHD for in vivo studies of central nervous system stimulants. This week, we reported on the discovery of the world's oldest-known mammalian ancestor; the surveying of 1,300 burial ...
• Lab work digs into gullies seen on giant asteroid Vesta by NASA's Dawn
  2024-12-21
  Pocked with craters, the surfaces of many celestial bodies in our solar system provide clear evidence of a 4.6-billion-year battering by meteoroids and other space debris. But on some worlds, including the giant asteroid Vesta that NASA's Dawn mission explored, the surfaces also contain deep channels, or gullies, whose origins ...

• New study says we're unlikely to find liquid water on Mars anytime soon
  2024-12-16
  More than a hundred years ago, astronomer Percival Lowell made the case for the existence of canals on Mars designed to redistribute water from the Martian ice caps to its lower, drier latitudes. This necessarily meant the existence of Martians to build the canals.
• China plans to retrieve Mars samples by 2031
  2024-12-05
  China's growing presence in space has been undeniable since the turn of the century. Between sending the first "taikonaut" to space in 2003 (Yang Liwei), launching the first Chinese robotic mission to the moon (Chang'e-1) in 2007, and the deployment of their Tiangong space station between 2021 and 2022, China ...
• New evidence of organic material identified on Ceres, the inner solar system's most water-rich object after Earth
  2024-12-04
  Six years ago, NASA's Dawn mission communicated with Earth for the last time, ending its exploration of Ceres and Vesta, the two largest bodies in the asteroid belt. Since then, Ceres —a water-rich dwarf planet showing signs of geological activity— has been at the center of intense debates about its ...
• Team links comet water to Earth's oceans
  2024-12-03
  Researchers have found that water on Comet 67P/Churyumov–Gerasimenko has a similar molecular signature to the water in Earth's oceans. Contradicting some recent results, this finding reopens the case that Jupiter-family comets like 67P could have helped deliver water to Earth.
• Ryugu asteroid sample rapidly colonized by terrestrial life despite strict contamination control
  2024-11-22
  Panspermia is the hypothesis that life can survive the transfer between planetary bodies as a secondary path for life to get started on planets throughout a solar system. The discovery of extraterrestrial life on asteroids or within meteorites would have profound implications for understanding the origins and distribution of life ...
• What's behind the Martian methane mystery?
  2024-11-18
  The seasonal variations of methane in the Martian atmosphere is an intriguing clue that there might be life hiding under the surface of the red planet. But we won't know for sure until we go digging for it.

• Uncovering a centaur's tracks: Scientists examine unique asteroid-comet hybrid
  2024-12-18
  Although our solar system is billions of years old, we've only recently become better acquainted with one of its more dynamic and captivating inhabitants known as (2060) Chiron.
• What is a dark comet? A quick guide to the 'new' kids in the solar system
  2024-12-16
  In 2017, NASA discovered and later confirmed the first interstellar object to enter our solar system.

• Lab work digs into gullies seen on giant asteroid Vesta by NASA's Dawn
  2024-12-21
  Pocked with craters, the surfaces of many celestial bodies in our solar system provide clear evidence of a 4.6-billion-year battering by meteoroids and other space debris. But on some worlds, including the giant asteroid Vesta that NASA's Dawn mission explored, the surfaces also contain deep channels, or gullies, whose origins ...
• Apollo lunar mission samples reveal origins of lunar water and its connection to Earth's early history
  2024-12-19
  A team of international scientists has unveiled groundbreaking research on the origins of lunar water, offering insights that could reshape our understanding of the Earth-moon system and the broader solar system. Published in the journal Proceedings of the National Academy of Sciences, the pioneering study explores the isotopic signatures of ...
• Uncovering a centaur's tracks: Scientists examine unique asteroid-comet hybrid
  2024-12-18
  Although our solar system is billions of years old, we've only recently become better acquainted with one of its more dynamic and captivating inhabitants known as (2060) Chiron.
• New study says we're unlikely to find liquid water on Mars anytime soon
  2024-12-16
  More than a hundred years ago, astronomer Percival Lowell made the case for the existence of canals on Mars designed to redistribute water from the Martian ice caps to its lower, drier latitudes. This necessarily meant the existence of Martians to build the canals.

• Apollo lunar mission samples reveal origins of lunar water and its connection to Earth's early history
  2024-12-19
  A team of international scientists has unveiled groundbreaking research on the origins of lunar water, offering insights that could reshape our understanding of the Earth-moon system and the broader solar system. Published in the journal Proceedings of the National Academy of Sciences, the pioneering study explores the isotopic signatures of ...
• The last meteor shower of the year peaks a few days before Christmas
  2024-12-18
  The last meteor shower of the year—the Ursids—peaks Sunday, a few days before Christmas.
• How to catch the Geminids, one of the strongest meteor showers of the year
  2024-12-14
  The Geminids—among the few major meteor showers to come from asteroids—peak on Friday. It's one of the year's last chances to see fireballs in the sky.
• NASA honors Algerian parks with Martian namesakes
  2024-12-12
  NASA's mapping of Mars now bears the names of three iconic Algerian national parks, Algerian physicist Noureddine Melikechi, a member of the US space agency's largest Mars probe mission, has told AFP.
• NASA's Lucy spacecraft prepares for second Earth gravity assist
  2024-12-12
  On Dec. 12, at 11:15 p.m. EST, NASA's Lucy spacecraft, currently in a two-year orbit around the sun, will skim Earth's atmosphere, passing only about 220 miles (360 kilometers) above the surface. This close flyby will result in a "gravity assist," putting the spacecraft on a new trajectory that travels ...

Science Daily

• Best glimpse ever into icy planetesimals of the early solar system
  2024-12-19
  New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects (TNOs) and centaurs. The findings reveal the distribution of ices in the early solar system and how TNOs evolve when they travel inward into the region of the giant ...
• Origins of lunar water and its connection to Earth's early history
  2024-12-19
  Scientists have unveiled groundbreaking research on the origins of lunar water, offering insights that could reshape our understanding of the Earth-Moon system and the broader solar system. The pioneering study explores the isotopic signatures of lunar water, revealing a mix of indigenous and cometary sources.
• Uncovering a centaur's tracks: Scientists examine unique asteroid-comet hybrid
  2024-12-18
  Scientists recently led a team that found, for the first time, that Chiron has surface chemistry unlike other centaurs. Its surface it has both carbon dioxide and carbon monoxide ice along with carbon dioxide and methane gases in its coma, the cloud-like envelope of dust and gas surrounding it.

BBC Science

• Reservoir of liquid water found deep in Martian rocks
  2024-08-12
  Studies of quakes detected from the planet's surface found it in the planet's rocky outer crust.

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