Comets
A giant comet is heading toward the solar system
It is the most distant comet to be discovered on its incoming path.
Giant comet found in the outer solar system
Estimated to be 100–200 kilometers across, the unusual wandering body will make its closest approach to the Sun in 2031.
Iron and Nickel found in the atmospheres of comets throughout our Solar System
A new study by a Belgian team using data from the European Southern Observatory’s Very Large Telescope (ESO’s VLT) has shown that iron and...
Most recently detected rogue comet may be the most pristine ever found
New observations with the European Southern Observatory’s Very Large Telescope (ESO’s VLT) indicate that the rogue comet 2I/Borisov, which is only the second and...
A comet discovered during 2020 Total Solar Eclipse
As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, unbeknownst to skywatchers, a little tiny speck was flying past the Sun.
Hubble Snaps Close-Up of Comet NEOWISE
The sharpest view yet of the breakup of Comet C/2019 Y4 (ATLAS).
Swift tracks water loss from an interstellar comet 2I/Borisov
2I/Borisov is the first observed interstellar comet, and the second observed interstellar interloper after ʻOumuamua'. It has 14 times the size of Earth with...
Hubble captured the sharpest view of the breakup of comet ATLAS
The NASA/ESA Hubble Space Telescope has provided astronomers with the sharpest view yet of the breakup of Comet C/2019 Y4 (ATLAS). The telescope resolved...
The fastest comets ever striking through our solar system
Hubble Watches Interstellar Comet Borisov Speed Past the Sun
Yale astronomers captured a close-up image of an interstellar comet
The comet will make its closest approach to the Sun at just over 2 AU on 8 December 2019.
Hubble Observes New Interstellar Visitor
On 12 October 2019, the NASA/ESA Hubble Space Telescope provided astronomers with their best look yet at an interstellar visitor — Comet 2I/Borisov —...
Comet inspires chemistry for making breathable oxygen on Mars
Although plentiful in modern Earth’s atmosphere, molecular oxygen is extremely rare in space. Only trace amounts have been found elsewhere in our solar system...