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NASA’s DART asteroid redirection mission may have inadvertently made future asteroid deflections much more challenging after its test sent boulders hurtling through space on unexpected trajectories. In September 2022, the DART mission successfully altered the orbit of asteroid moon Dimorphos. Unfortunately, the smaller space rocks that were dislodged when the kinetic impactor struck the natural satellite achieved three times the momentum of the spacecraft that created them. The University of Maryland-led team (UMD) behind the new research paper on DART’s repercussions cautions that results demonstrate planetary defense may be considerably more complex than previously suspected, with the potential for many...

Astronomers are making a surprising breakthrough in the study of Venus, as new simulations suggest there may be a hidden family of asteroids quietly orbiting the Sun alongside the planet. This discovery, detailed in a recent study by Valerio Carruba and his team at São Paulo State University, is like uncovering an entire continent that was previously unknown. The research, published on the preprint server arXiv, uncovers important insights about the dynamics of Venus’ orbit and could have significant implications for our understanding of the solar system. Venus has long been one of the most mysterious planets in our solar...

NEW YORK (AP) — The largest digital camera ever built released its first shots of the universe Monday — including colorful nebulas, stars and galaxies.The Vera C. Rubin Observatory, located on a mountaintop in Chile, was built to take a deeper look at the night sky, covering hidden corners. Funded by the U.S. National Science Foundation and U.S. Department of Energy, it will survey the southern sky for the next 10 years.The observatory’s first look features the vibrant Trifid and Lagoon nebulas located thousands of light-years from Earth. A light-year is nearly 6 trillion miles. A gaggle of galaxies known...

The first few images from the Rubin Observatory have dropped, and there are more coming later today. A mosaic of 678 images taken over seven hours of observation shows the Trifid (top right in pink) and Lagoon (center) Nebulae. Image Credit: NSF-DOE Vera C. Rubin Observatory The Vera C. Rubin Observatory has officially unveiled its first images, and truly, it is going to be as revolutionary as people expect it to be. Thanks to its incredible eye on the cosmos, which is the largest digital camera in the world, the images are absolutely breathtaking – and we can’t even share...

A last-minute observation from the Webb telescope has sharpened predictions for asteroid 2024 YR4, slightly increasing its odds of hitting the Moon but confirming no threat to Earth. (Artist’s concept.) Credit: SciTechDaily.com ============================================================ NASA’s James Webb Space Telescope recently made a final observation of asteroid 2024 YR4 before it drifted out of range. This rare data update refined the asteroid’s projected path and revealed a small uptick in its chance of striking the Moon, though Earth remains in the clear. Webb Telescope Captures Final Glimpse Asteroid 2024 YR4 may be out of sight now, but before it slipped too far...

(Credit: NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab) NASA’s Lucy spacecraft captured the most detailed images yet of an oddly shaped asteroid during its recent flyby, revealing the space object’s weird features and “strikingly complex” attributes. Lucy’s visit to the peculiar asteroid, dubbed Donaldjohanson, marked the intrepid NASA probe’s second close encounter, showcasing the object’s unusual barbell shape and offering images that provide additional clues to its unique geology. The flyby occurred on April 20, 2025, as Lucy approached to within just 600 miles of Donaldjohanson. High-resolution images of the contact binary object, which possesses two outer lobes joined by a narrow “neck,” offered...

In a rare announcement that has captured the attention of scientists and the public alike, NASA has issued a warning about an asteroid with a 4% chance of striking the Moon in 2032. The news, which has stirred both intrigue and concern, highlights the ongoing efforts to monitor near-Earth objects (NEOs) and assess potential threats to our planet and its natural satellite. Astronomers tentatively designated the asteroid 2025-XF47. NASA’s Near-Earth Object Observations Program first detected it earlier this year. According to a statement from the agency, widely reported by outlets like CNN and BBC News, the object measures approximately 150...

Ground-based telescopes from the International Asteroid Warning Network have been tracking the asteroid, but it will be too faint to observe until June 2028...That’s why Webb was called in for the job, measuring the asteroid’s brightness across a range of infrared wavelengths to better determine its size. In late January, a team of scientists proposed using the mid-infrared instrument on Webb to observe the asteroid and better understand its damage potential. The team recently released the preliminary results of Webb’s observations of asteroid 2024 YR4, suggesting that, while the asteroid is larger and rockier than previous observations, it has nearly...

On Friday the 13th (yes, really) of April 2029, Earth will avoid an apocalyptic event by an astronomical hair’s breadth as the asteroid Apophis, streaks by. It will come closer to Earth than the Moon — much closer in fact. It will come between us and the satellites that bring us radio, television and military intelligence. Apophis is named after an Egyptian god of chaos and evil. If it were to hit Earth, chaos would be the least of our trouble. It’s 1,000 feet across, the size of a football stadium, and it’s going 69,000 miles an hour. Apophis won’t...

Graphic of the possible locations of 2024 YR4 on December 22, 2032, as of February 19, 2025. Earth is close to the center of the white circle, which represents the Moon’s orbital path. The range of possibilities has decreased from the previous image because of the additional data gathered. Credit: NASA JPL/CNEOS ================================================================== Astronomers are closely monitoring asteroid 2024 YR4, which once had the highest recorded impact probability for its size. Current estimates place its chance of hitting Earth at 1.5% in 2032, with a smaller risk for the Moon. With the full moon now past, the skies have darkened,...

Colorized microscopic image of sodium carbonate deposit on Ryugu sample. Credit: KyotoU/Toru Matsumoto ============================================================================== Deposits Found on a Nearby Asteroid Point to Salty Water in the Outer Solar System Scientists have uncovered salt minerals in samples from asteroid Ryugu, pointing to a past with liquid water. The presence of these salts suggests that Ryugu’s parent body once hosted a warm, saline environment before the water vanished. This discovery could help us understand the role of water in shaping planets and moons across the Solar System. Ryugu’s Salty Secret: What Scientists Found Asteroids that pass near Earth often spark concern about...

The probability that a major asteroid, big enough to wipe out an entire city, will hit Earth in 2032 has just increased to 1 in 32, or 3.1%, according to NASA. On Feb. 7, NASA increased the likelihood that asteroid 2024 YR4 will hit Earth in seven years time from 1.2% to 2.3%. The odds of impact then climbed to 2.6%, and are now at 3.1%, according to the latest data on NASA's Center for Near Earth Object Studies website. Asteroid 2024 YR4 has an estimated diameter of around 177 feet (54 meters), or about as wide as the leaning...

Scientists have been left baffled after discovering something vast and radioactive lurking in the depths of the Pacific Ocean. An international team of scientists has found unexpectedly high levels of the rare radioactive isotope beryllium-10 in samples from the Pacific seabed. And they believe it could have been caused by a blast of radiation from space more than 10 million years ago. Beryllium-10 is an isotope - a variant of an element with a different number of neutrons in its atomic nuclei, formed when cosmic rays hit oxygen and nitrogen in the upper atmosphere. After forming, this isotope falls to...

At the end of 2024, astronomers detected an asteroid...the estimated orbit put it at a 1% chance of striking Earth. As of this writing, it now has a 2.3% chance of striking Earth on December 22, 2032. While you might think this resembles the plot of Don't Look Up, none of this is too unusual. You can see this in the image above, which indicates potential trajectory points. The 2.3% odds aren't simply the chances of a die roll. What it means is that when astronomers run 1,000 orbital simulations based on the data we have, 23 of them impact...

An asteroid big enough to destroy a city has a 1.9% chance of impacting Earth on December 22, 2032.

An asteroid with the power to unleash an explosion one hundred times greater than an atomic bomb has triggered global space agency alarms. The odds that the space rock dubbed Y4, which is nearly the size of a football field at between 130 and 300 feet wide, could hit Earth is now too close to ignore, they warn. “If you put it over Paris or London or New York, you basically wipe out the whole city and some of the environs,” Bruce Betts, chief scientist of The Planetary Society, told Agence France-Presse last week. The asteroid was first observed on...

Studies of rock and dust from asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security–Regolith Explorer) spacecraft have revealed molecules that, on our planet, are key to life, as well as a history of saltwater that could have served as the “broth” for these compounds to interact and combine. The findings do not show evidence for life itself, but they do suggest the conditions necessary for the emergence of life were widespread across the early solar system, increasing the odds life could have formed on other planets and moons. “NASA’s OSIRIS-REx mission already is...

2024 YR4 is a newly spotted asteroid with the potential to hit Earth... A 1.2% chance the asteroid hits Earth based on very preliminary calculations. Which means—obviously—a 98.8% chance the rocky object misses us! The Asteroid Terrestrial-impact Last Alert System (ATLAS) first spotted 2024 YR4 on December 27, 2024. At that point the asteroid was 515,116 miles (829,000 kilometers) from Earth. The asteroid is currently moving away from our planet but its next close approach will occur in December 2028. CNEOS reports that the asteroid is 180 feet (55 meters) across, and its speed at (potential) impact estimated at 10.76...

This weekend, the mountain-size space rock will peak in brightness in a rare once-in-a-decade event that you can observe from home with basic stargazing binoculars — or in a free livestream. Named (887) Alinda, the near-Earth asteroid measures an estimated 2.6 miles (4.2 kilometers) wide — roughly the width of Manhattan — according to NASA's Jet Propulsion Laboratory. On Wednesday (Jan. 8), the chunky space rock made its closest approach to Earth in decades, swooping to within 7.6 million miles (12.3 million km) of our planet, or about 32 times the average distance between Earth and the moon. Alinda isn't...

An artistic representation of Chiron’s nucleus surrounded by debris and a coma of dust and gas. Credit: William Gonzalez Sierra UCF researchers utilized the James Webb Space Telescope to uncover unique characteristics of (2060) Chiron, a distant “centaur” that exhibits traits of both a comet and an asteroid. These findings provide valuable insights into the origins of our Solar System. Although our Solar System is billions of years old, we’ve only recently gained deeper insight into one of its most dynamic and intriguing members: (2060) Chiron. Chiron belongs to a group of celestial objects known as “Centaurs.” These objects orbit...