Artist’s impression of exocomets orbiting the star ß Pictoris. Credit: © ESO/L. Calçada For the past thirty years, astronomers have been fascinated with the star…
Posts published in “Comet”
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This April full moon is known as the pink moon because it heralds the arrival of spring flowers. The next full moon is the Pink…
This sequence shows how the nucleus of Comet C/2014 UN271 (Bernardinelli-Bernstein) was isolated from a vast shell of dust and gas surrounding the solid icy…
As comets approach the Sun, they release gas and dust known to astronomers as cometary activity. For comets passing near or inside Earth’s orbit, this…

Unprecedented Opportunity To Investigate the Next Interstellar Visitor With the Webb Space Telescope
This artist’s impression shows the first interstellar object discovered in the Solar System, `Oumuamua. Credit: ESA/Hubble, NASA, ESO, M. Kornmesser Scientists will learn about objects…
Did comet’s fiery destruction lead to downfall of ancient Hopewell? Researchers at the University of Cincinnati find evidence of cosmic cataclysm 1,500 years ago at…
An accidental discovery and a love of spectroscopic perturbations leads to the solution of a 90-year-old puzzle. In a global collaboration, a team of researchers…
What if a 10 km (6.5 mile)-wide asteroid was on a bee-line towards Earth, with an impending, calamitous impact just six months away? This was…
A composite of Comet Leonard images captured December 15-16, 2021, in ultraviolet light by the Metis instrument onboard the ESA/NASA Solar Orbiter spacecraft. The comet…
What’s the difference between asteroids, comets and meteors? These space rocks each have their own unique attributes. But differences aside, these fascinating objects are all…
Frame from a movie captured by the SoloHI instrument on the ESA/NASA Solar Orbiter spacecraft of Comet Leonard on December 17-18, 2021. Credit: ESA/NASA/NRL/SoloHI Comet…
Credit: ESA/NASA/NRL/SoloHI/Guillermo Stenborg When Comet Leonard, a mass of space dust, rock, and ice about a half-mile (1 kilometer) wide, makes its closest pass of…
The team solved this mystery with the help of a vacuum chamber, a lot of lasers, and one powerful cosmic reaction. Every so often, the…
Comet C/2021 A1 (Leonard) is seen next to globular star cluster M3 in this image taken by Adam Block at UArizona’s Mount Lemmon Sky Center.…
This image shows comet Leonard streaming through the sky on the morning of December 7, 2021, taken by ESA’s Near-Earth Object Coordination Centre (NEOCC), part…
An image of comet Leonard (C/2021 A1) taken November 13, 2021, from June Lake in California. Credit & Copyright: Dan E. Bartlett Now is the…
Sofia Bergman’s thesis gives scientists unique possibilities to study low-energy ions in space. låg energi. Credit: Institutet för rymdfysik Sofia Bergman, Swedish Institute of Space…
A graphic comparing the size of Comet 2014 UN271 (Bernardinelli-Bernstein) to other solar system objects. Credit: © Will Gater A mega-comet – potentially the largest…
‘Centaurs’ near JupiterJupiter is the largest planet in the solar system and the fifth planet from the sun. It is a gas giant with a…
This image shows an artist’s impression of what the surface of the 2I/Borisov comet might look like. Credit: ESO/M. Kormesser In 2019, astronomers spotted something…