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asteroids

A time-lapse of images taken by OSIRIS-REx during its touch-and-go maneuver, with the spacecraft arm centered in this video.
Posted inNews

There and Back Again: Asteroid Samples Return to Earth

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 September 202321 September 2023

OSIRIS-REx will help reveal Bennu’s detailed carbon chemistry and history of space weathering and unlock a key piece of the solar system’s early history.

A close-up of a smooth gray semispherical body in space with a red spherical body in the background
Posted inNews

Tiny Martian Moon May Be a Chip Off the Old Block

Javier Barbuzano, Science Writer by Javier Barbuzano 2 June 20232 June 2023

A close approach to Deimos reveals that its surface does not look like that of an asteroid, hinting at a Martian origin.

A satellite image of the surface of Mars showing snaking channels and other water-sculpted features
Posted inNews

Asteroid Impacts Could Have Warmed Ancient Mars

Katherine Kornei, Science Writer by Katherine Kornei 17 April 202317 April 2023

Hydrogen released during large impacts might have boosted Mars’s surface temperature above freezing for thousands or even millions of years, enabling liquid water to flow over the Red Planet.

An artist’s rendering of three hazy rings surrounding the Sun near the orbits of Mercury, Venus, and Earth
Posted inNews

Mercury Isn’t Alone in Orbit, and Scientists Don’t Know Why

by Jure Japelj 27 February 202324 May 2023

A cloud of dust traces the innermost planet’s orbital path. By all accounts, it shouldn’t be there.

Two spacecraft are visible between two large, gray asteroids, with stars in the background.
Posted inNews

NASA’s Double Asteroid Redirection Test Is a Smashing Success

Katherine Kornei, Science Writer by Katherine Kornei 12 January 202312 January 2023

The mission, focused on the Didymos-Dimorphos binary asteroid system, proved that an asteroid’s orbit can be altered by kinetic impactor technology.

Posted inEditors' Highlights

A Really Big (Global) Splash at Chicxulub

by Tom Parsons 12 October 202213 October 2022

What caused a tsunami 30,000 times more powerful than the December 26, 2004 Indian Ocean tsunami? A new modeling study says this was one of the results from the Cretaceous Chicxulub asteroid impact.

Gloved hands hold a dark chunk of rock, a part of the Aguas Zarcas meteorite.
Posted inNews

Tiny “Pancakes” Suggest Some Asteroids May Stay Active

Damond Benningfield, Science Writer by Damond Benningfield 22 September 202222 September 2022

Analysis of a meteorite that fell in Costa Rica shows that its parent body may resemble the asteroid Bennu.

Artistic interpretation in which part of Earth is seen from above, and a bright trail of light pierces clouds and ends in what looks like an explosion
Posted inNews

Impact Crater off the African Coast May Be Linked to Chicxulub

Katherine Kornei, Science Writer by Katherine Kornei 19 September 202213 October 2022

The underwater crater, spotted serendipitously in commercial observations of seafloor sediments, is believed to have formed at roughly the same time as the famous Cretaceous-Paleogene impact event.

Flaky rock particles leak into space from the over-filled sampling device on OSIRIS-REx in this series of black and white images.
Posted inScience Updates

A Time Capsule from the Early Solar System Is En Route to Earth

by C. W. V. Wolner 4 August 20224 August 2022

After an exciting encounter with asteroid Bennu, the OSIRIS-REx mission team looks forward to hitting pay dirt when a hefty sample of ancient planetesimal material is delivered to Earth next year.

Orbits of the asteroids from the Gaia Data Release 3 up to Jupiter’s distance
Posted inNews

Galaxy Mapper Tracks Asteroids Closer to Home

by Jure Japelj 14 July 202214 July 2022

The Gaia mission’s asteroid survey will help dig deeper into the solar system’s rocky history.

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