Astronomers have spotted what they believe is the second object of interstellar origin ever observed in the Solar System.
Comet C/2019 Q4. Image credit:...
Astrophotographer Jacint Roger has spotted a small object in a sequence of images of 67P/Churyumov-Gerasimenko taken by ESA’s Rosetta spacecraft on October...
Fossil clams found in southwestern Florida contain ancient microtektites, tiny (about 200 μm in diameter) glass beads that form when the explosive impact...
A fast moving, cigar-shaped object of extrasolar origin was discovered on October 19, 2017 by the Pan-STARRS 1 telescope in Hawai’i. Named 1I/2017 U1...
NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA) observed the hyperactive Jupiter-family comet 46P/Wirtanen as it made its closest approach...
Libyan desert glass is a natural glass found in western Egypt that formed 29 million years ago, however its origin is disputed: the two main formation...
NASA’s Transiting Exoplanets Survey Satellite (TESS) has spotted the long tails of extrasolar comets orbiting the very young star beta Pictoris.
This...
Between 2014 and 2016, the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) camera onboard ESA’s Rosetta spacecraft captured almost...
A cometary building block has been discovered inside the LaPaz Icefield (LAP) 02342, a carbonaceous chondrite meteorite found in Antarctica in the 2000s.
An...
At a site dubbed Tanis in North Dakota’s Hell Creek Formation, paleontologists have unearthed an assemblage of exquisitely-preserved fossilized organisms...
‘Oumuamua, a recently discovered object of extrasolar origin, is a comet that rocks, according to a new study by astronomers at Yale University and Caltech.
This...
The ‘bow shock’ is the first boundary the solar wind encounters as it approaches planets or comets. From 2014 to 2016, ESA’s Rosetta orbiter studied...
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) captured the radio image of 46P/Wirtanen on December 2, 2018, when the comet...
The NASA/ESA Hubble Space Telescope and NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA) snapped stunning images of a short-period comet...
On Sunday, December 16, 2018, comet 46P/Wirtanen will make a close pass of Earth. The comet will be at its closest distance to our planet in over four...
As far back as 40,000 years ago (Upper Paleolithic), ancient people kept track of time using relatively advanced knowledge of astronomy.
The Lascaux Shaft...
In October 2017, a fast moving comet of extrasolar origin, 1I/2017 U1 (‘Oumuamua), was discovered close to the Earth with a ground-based telescope in...
C/2016 R2 (PanSTARRS), a visitor from the Solar System’s distant Oort Cloud, sports a very complex tail dominated by blue light and is unusually rich...
An international team of researchers from the United States, Taiwan and France provides new evidence that phosphates — a key element in the building...
In October 2017, a fast moving, cigar-shaped comet of extrasolar origin was discovered close to the Earth with the Pan-STARRS1 telescope in Hawai’i....
