Search results for planetesimals

Space Exploration Jul 18, 2023

NASA's Psyche mission enters home stretch before launch

Engineers and technicians at Cape Canaveral are preparing the Psyche spacecraft for liftoff, which is slated for Oct. 5.

Astronomy Jan 11, 2023

New Webb image reveals dusty disk like never seen before

NASA's James Webb Space Telescope has imaged the inner workings of a dusty disk surrounding a nearby red dwarf star. These observations represent the first time the previously known disk has been imaged at these infrared ...

Space Exploration Apr 4, 2022

Shake and bake: NASA's Psyche is tested in spacelike conditions

To prepare for its launch in August, the Psyche spacecraft has been tested to ensure it can operate in the extreme conditions it will face on its trip to a metal-rich asteroid.

Earth Sciences Feb 15, 2019

Carbonaceous chondrites provide clues about the delivery of water to Earth

An international study led by researchers from the Institute of Space Sciences, from the Spanish National Research Council (CSIC) and the Institut d'Estudis Espacials de Catalunya has discovered that carbonaceous chondrites, ...

Astronomy Jun 6, 2014

Researchers find evidence of speedy core formation in solar system planetesimals

(Phys.org) —A combined team of researchers from Germany, Switzerland and the U.S. has found evidence of faster than thought core formation of planetesimals in our solar system. In their paper published in the journal Science, ...

Astronomy Jul 8, 2013

Cosmic dust belts without dust: Astrophysicists discover six ultra-cold debris disks

Planets and asteroids, red giants and brown dwarfs - there are all kinds of objects in our Universe. Debris disks are among them. These are belts consisting of countless dust particles and planetesimals, circling around one ...

Astronomy Jan 7, 2013

Exocomets may be as common as exoplanets

(Phys.org)—Comets trailing wispy tails across the night sky are a beautiful byproduct of our solar system's formation, icy leftovers from 4.6 billion years ago when the planets coalesced from rocky rubble.

Space Exploration Apr 6, 2012

Team finds asteroids were bombarded by iron loving elements too

(Phys.org) -- A team made up of a diverse group of researchers has found after studying the composition of several asteroids that most such planetesimals had an abundance of highly siderophile elements in their mantles suggesting, ...

Astronomy Mar 9, 2012

Stars with dusty disks should harbor Earth-like worlds

Stars with disks of debris around them might be good targets to search for Earth-like planets, researchers say.

Astronomy Jan 28, 2011

Binary planetesimals

(PhysOrg.com) -- In fewer than ten million years, the material in the disk around a young star will either be accreted on to its star, dispersed into the interstellar medium, or converted into planets or smaller solid bodies. ...

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