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Comets

‘Oumuamua已经在星际空间中游荡了数百万年
Posted inResearch Spotlights

‘Oumuamua可能是类冥王星系外行星的冰碎片

by Sarah Stanley 28 June 202128 September 2021

研究人员认为氮冰是最可能构成这一神秘星际物体的物质。

‘Oumuamua has tumbled through interstellar space for millions of years.
Posted inResearch Spotlights

‘Oumuamua May Be an Icy Fragment of a Pluto-Like Exoplanet

by Sarah Stanley 19 May 202128 September 2021

Researchers favor nitrogen ice as the most likely material for the mysterious interstellar object’s composition.

Illustration of Stone Age villagers shielding their eyes from a nearby airburst
Posted inNews

Armagedón a 10,000 A.C.

by J. Barbuzano 4 June 20202 February 2022

Fragmentos de un cometa probablemente golpearon la Tierra hace 12,800 años, y una pequeña aldea del Paleolítico en Siria podría haber sufrido el impacto.

Illustration of Stone Age villagers shading their eyes from a nearby airburst
Posted inNews

Armageddon at 10,000 BCE

by J. Barbuzano 30 March 20202 February 2022

Fragments of a comet likely hit Earth 12,800 years ago, and a little Paleolithic village in Syria might have suffered the impact.

Illustration of the interstellar object ‘Oumuamua shedding dust while hurtling toward the distant Sun
Posted inNews

Interstellar Visitors Could Export Terrestrial Life to Other Stars

by Nola Taylor Tillman 22 January 202029 September 2021

A handful of interstellar objects and long-period comets could have scooped up microorganisms from Earth and carried them to worlds around other stars.

two-color composite image of 2I/2019 Borisov
Posted inNews

Interstellar Interloper Borisov Looks Like a Regular Comet, for Now

by Nola Taylor Tillman 4 October 201928 September 2021

A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.

A reflected-light image of the comet-containing meteorite
Posted inNews

Meteorite’s Hidden Treasure: A Comet

by Mary Caperton Morton 24 April 20194 October 2021

A fragment of a comet found hidden inside a meteorite is offering new insights into the dynamics of our young solar system.

View of Comet 67P
Posted inNews

More Discoveries in the Cards from Defunct Comet Mission

by JoAnna Wendel 29 September 2017

A year after the end of the Rosetta mission, the real scientific fun begins.

A picture of comet 67P/Churyumov-Gerasimenko, taken by the European Space Agency’s Rosetta spacecraft early this year.
Posted inNews

Cracking Comet: A Window to the Past

by JoAnna Wendel 1 November 201615 November 2021

An unusual feature on comet 67P/Churyumov-Gerasimenko offers insights into cometary origins.

Image of comet 67P/Churyumov-Gerasimenko from a camera aboard Rosetta spacecraft shortly before the spacecraft’s controlled crash.
Posted inNews

Rosetta Spacecraft Death-Dives into Comet Companion—On Purpose

by R. Cowen 30 September 20164 October 2016

On the way to its demise, the probe intimately viewed a dust-spewing pit and measured close up the gravity field, temperature, and other features of the comet.

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