Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS), a team of astronomers from Ukraine has detected the transits of five comets around...
The estimated diameter of the nucleus of comet C/2014 UN271 (Bernardinelli-Bernstein) is approximately 137 km (85 miles) across, making it the largest...
The discovery probability of long-period comets passing near the Sun is highest during their first passage and then declines, or fades, during subsequent...
Archaeologists have found meteorites, microspherules, iridium and platinum anomalies, and burned charcoal-rich habitation surfaces at 11 archaeological...
When C/2021 A1 (Leonard), a recently-discovered long-period comet about 1 km wide, makes its closest pass of the Sun on January 3, 2022, it will be a journey...
Comet C/2014 UN271 Bernardinelli-Bernstein, the largest comet ever discovered, was already exhibiting coma at heliocentric distances 23.8 and 21.2 AU,...
According to a study published in the journal Geology, samples of glassy slabs found in the Atacama Desert, northern Chile, contain tiny fragments with...
(248370) 2005 QN137 is the eighth main-belt asteroid, out of more than half a million asteroids in the main belt, confirmed to not only be active, but...
Archaeologists have found evidence that in 1650 BCE (Middle Bronze Age), a cosmic airburst destroyed Tall el-Hammam, an ancient walled city in the Jordan...
The near-Sun comet C/2019 Y4 (ATLAS) is the first member of a long-period comet group observed to disintegrate well before its closest approach to the...
On July 14, 2021, the Subaru-Asahi Sky Camera on the 8.2-m Subaru Telescope at the summit of Maunakea, Hawai’i, captured a rare meteor outburst associated...
The long-period comet C/2019 Y4 (ATLAS) fragmented during its perihelion in April 2020. About two months later, ESA’s Solar Orbiter observed the dusty...
Astronomers with Las Cumbres Observatory have captured a new image of the recently-discovered giant comet C/2014 UN271 (Bernardinelli-Bernstein).
This...
Using the Near-Infrared Spectrograph (NIRSPEC) instrument at the Keck II telescope, astronomers conducted near-infrared spectroscopic observations of the...
Comet Bernardinelli-Bernstein, which is between 100 and 200 km (62-124 miles) across, will make its closest approach to the Sun in 2031, according to an...
Dr. Peter Jenniskens of the SETI Institute and NASA’s Ames Research Center and his colleagues say they can detect meteor showers from the debris in the...
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have produced a detailed map of intensity and abundance of gaseous hydrogen cyanide...
Using spectroscopic observations from ESO’s Very Large Telescope, a duo of astronomers from Poland has detected atomic nickel vapor in the cold coma...
Two teams of astronomers have performed polarimetric observations of 2I/Borisov, the first active extrasolar comet ever detected in our Solar System, using...
