Tag: Asteroids

Juicy new details emerge about an asteroid NASA’s Lucy spacecraft flew by last year

Last year, NASA’s Lucy spacecraft encountered a bi-lobed asteroid that is a chunk of an even larger rocky body that was smashed apart in an almighty collision 155 million years ago. This little pitstop happened on Lucy’s way to a rendezvous with the Trojan asteroids that shadow Jupiter around the sun. The asteroid 52246 Donaldjohanson, […]

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The asteroid that wiped out the dinosaurs may have created a vast underground habitat for life that lasted 8 million years

The asteroid impact that doomed the dinosaurs may also have built one of Earth’s longest-lasting underground ecosystems. When a roughly 6-mile-wide (10-kilometer-wide) asteroid slammed into what is now Mexico’s Yucatán Peninsula 66 million years ago, it triggered a global catastrophe that wiped out about 75% of life on Earth, including all non-avian dinosaurs. However, that […]

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Famous asteroid Ryugu may have been bombarded by a swarm of tiny space rocks 1,000 years ago

In 2020, Japan’s Hayabusa2 spacecraft brought samples of an asteroid named Ryugu to Earth — and now, scientists examining those samples found that the object bears the scars of a recent encounter with tiny space rocks. The reason the research team believes Ryugu was bombarded by micrometeorites is due to a fine layer of sodium, […]

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‘God of Chaos’ asteroid Apophis will blaze across the sky on April 13, 2029 — here’s why this once-in-a-lifetime event is worth traveling for

A rare naked-eye asteroid will light up the night sky on April 13, 2029, when the near-Earth asteroid 99942 Apophis makes an extraordinarily close flyby of Earth. For skywatchers, it’s a once-in-a-lifetime event — and one worth traveling for. The Sahara Desert cools fast after sunset, and April’s stars come out quickly. One by one, […]

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The powerful new Rubin Observatory just found 11,000 new asteroids and measured ‘tens of thousands more’

Early observations from the Vera C. Rubin Observatory have already revealed more than 11,000 previously unknown asteroids, reshaping our view of the solar system and offering a striking preview of what’s to come once full science operations begin. The discovery, made using preliminary data, demonstrates Rubin‘s ability to scan the sky quickly and deeply. Even […]

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Two physicists and a curious host walk into a studio…

This March on The Curiosity Desk, GBH’s daily science show with host Edgar B. Herwick III, MIT scientists dropped by to address the questions: “How close are we to observing the dark universe?” (Thursday, March 12 episode) and “Is Earth prepared for asteroids?” (Thursday, March 26 episode). Up first, Prof. Nergis Mavalvala, dean of the […]

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Like ‘accelerating from stationary to supersonic flight’: Europe’s Hera probe boosts speed, stays on course for November asteroid rendezvous

The European Space Agency’s Hera spacecraft has completed a major deep-space maneuver, setting it on course to rendezvous late this year with the asteroid system targeted by NASA’s DART mission back in 2022. Hera launched on a SpaceX Falcon 9 rocket in October 2024, beginning its voyage to the Didymos binary asteroid system. Hera is […]

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A car-sized asteroid is heading toward Earth for a flyby later tonight: Here’s what you need to know

A car-sized asteroid will buzz Earth at a little over half the Earth-moon distance late tonight (March 24), just three days after its discovery by the Zwicky Transient Facility at the Palomar Observatory in California. The close encounter between Earth and the asteroid designated 2026 FM3 will occur at 10:07 p.m. EDT on March 24 […]

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NASA peers inside an asteroid | Space photo of the day for March 19, 2026

X-ray computed tomography (XCT) scans of particles from asteroid Bennu. They show the most common types of crack networks observed in Bennu samples. One has an extensive and connect framework of curved cracks, whereas the other has sparse, straight and flat fractures. (Image credit: NASA/Scott Eckley) NASA has used advanced imaging techniques to peer inside […]

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3 Questions: Fortifying our planetary defenses

When people think of asteroids, they tend to picture rare, civilization-ending impacts like those depicted in movies such as “Armageddon.” In reality, the asteroids most likely to affect modern society are much smaller. While kilometer-scale impacts occur only every tens of millions of years, decameter-scale (building-sized) objects strike Earth far more frequently: roughly every couple […]

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3 billion years old! This Australian crater is the oldest known asteroid impact site on Earth

The oldest known asteroid impact site on Earth was created 3.02 billion years ago in what’s now Western Australia — not far from where we’ve seen the oldest traces of life on our planet. A rock formation in Western Australia’s Pilbara region seems to offer evidence of an asteroid slamming into Earth‘s newly-formed rocky crust […]

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Japanese probe set for super-close flyby on July 5: ‘We’re going to discover another beast to put in the zoo of asteroids’

Japan’s Hayabusa2 sample-return spacecraft is on target to make one of the closest ever flybys of a near-Earth asteroid in early July, as part of its extended mission campaign. Hayabusa2 launched in December 2014 and rendezvoused with the asteroid Ryugu four years later. The spacecraft collected samples and delivered them to Earth in 2020, completing […]

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Ryugu asteroid sample contains all five key components of DNA, scientists find

Scientists have discovered that a sample of the Ryugu asteroid collected by Japan’s Hayabusa 2 spacecraft contains the nucleobases adenine, guanine, cytosine, thymine and uracil, the building blocks of DNA and RNA upon which all life is based. Because asteroids like Ryugu formed 4.6 billion years ago when the planets were being born around the […]

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