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comets

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 202327 February 2023

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

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

Armagedón a 10,000 A.C.

Javier Barbuzano, Science Writer by Javier 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

Javier Barbuzano, Science Writer by Javier 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

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 22 January 20204 January 2023

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

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 4 October 201927 March 2023

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

Mary Caperton Morton, Science Writer 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

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 29 September 201719 July 2022

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

JoAnna Wendel, freelance science writer and illustrator 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 201617 January 2023

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.

An artist’s representation of comet C/2014 S3, which contains material from the early inner solar system
Posted inNews

Comet with Stunted Tail Hints at How Solar System Formed

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 18 May 201617 November 2021

Finding out whether just a few or many of this newfound type of rocky object roam deep space should help scientists sort among contrasting scenarios of the solar system's infancy.

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