Search results for asteroid belt

Space Exploration Jun 11, 2019

Gravitational data from Dawn suggests dome on Ceres is made of volcanic mud

An international team of researchers has found evidence that suggests the large dome found on the surface of the dwarf planet Ceres is made of slurry—a mix of salty brine and solid particles. In their paper published in ...

Space Exploration Jun 11, 2019

Study of mesosiderite zircons suggests Vesta was struck by a very large rock

A team of researchers from Australia, Switzerland and Japan has found evidence suggesting that the asteroid Vesta was stuck by a very large rock approximately 4.5 billion years ago. In their paper published in the journal ...

Astronomy May 28, 2019

Stolen comets and free-floating objects

Our solar system may contain alien comets that were stolen from another star flying past 4.5 billion years ago. Far away in a distant cluster of young stars, a similar close encounter might have also sent the inter-stellar ...

Space Exploration May 2, 2019

State-of-the-art imaging uncovers the exciting life history of an unusual Mars meteorite

With human and sample-return missions to Mars still on the drawing board, geologists wishing to study the red planet rely on robotic helpers to collect and analyse samples. Earlier this year we said goodbye to NASA's Opportunity ...

Space Exploration May 1, 2019

Researchers find water in samples from asteroid Itokawa

Two cosmochemists at Arizona State University have made the first-ever measurements of water contained in samples from the surface of an asteroid. The samples came from asteroid Itokawa and were collected by the Japanese ...

Space Exploration Apr 29, 2019

Gaia's first asteroid discoveries

While scanning the sky to chart a billion stars in our Milky Way galaxy, ESA's Gaia satellite is also sensitive to celestial bodies closer to home, and regularly observes asteroids in our solar system.

Astronomy Apr 15, 2019

Tiny fragment of a comet found inside a meteorite

A tiny piece of the building blocks from which comets formed has been discovered inside a primitive meteorite. The discovery by a Carnegie Institution of Science-led team, including a researcher now at Arizona State University, ...

Space Exploration Mar 29, 2019

Shadows on the Moon - a tale of ephemeral beauty, humans and hubris

Between 1969 and 1972, a new type of archaeological site was created. For the first time, human bodies and the technology needed to sustain them altered the landscape of another world. The astronauts from the six Apollo missions ...

Space Exploration Mar 28, 2019

Hubble watches spun-up asteroid coming apart

A small asteroid has been caught in the process of spinning so fast it's throwing off material, according to new data from NASA's Hubble Space Telescope and other observatories.

Space Exploration Mar 22, 2019

Why dangerous asteroids heading to Earth are so hard to detect

Earth is often in the firing line of fragments of asteroids and comets, most of which burn up tens of kilometres above our heads. But occasionally, something larger gets through.

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