Comets
Growing Tail of Interstellar Comet 3I/ATLAS Captured
New images of the famous interstellar visitor were captured live from the Gemini South telescope.
NASA detected a comet that originated from interstellar space
It is currently located about 420 million miles (670 million kilometers) away.
The largest and second most distantly active comet ever observed from the Oort Cloud
Giant comet’s molecular activity and chemistry detected at record distance.
Water on comet has a similar molecular signature to the water in Earth’s oceans
This finding reopens the case that Jupiter-family comets.
New equation to track Earth-bound asteroids more precisely
Identifying asteroids on a potential collision course with Earth could be made easier.
Venus’s atmosphere emits Oxygen and Carbon
Surprising insights into how gases are stripped away from the upper layers of the planet’s atmosphere.
Webb finds water, and a new mystery, in rare main belt comet
The NASA/ESA/CSA James Webb Space Telescope has enabled another long-sought scientific breakthrough, this time for Solar System scientists studying the origins of the water...
Darkest ever view of a dense interstellar cloud
The observations have revealed the composition of a virtual treasure chest of ices from the early universe.
Comet K2 was shining bright during its closest approach to Earth
Perfect timing for a conjunction with a star cluster.
Discovery of 30 exocomets in a young planetary system
First-ever system detected outside our Solar System.
A 4 billion-year-old enormous comet is heading our way
The comet is more than twice the width of Rhode Island.
Distant long-period comets quickly fade away, study
Comet properties substantially evolve at solar distances much larger than previously considered.
Comet Leonard has disintegrated into pieces as it rounds the Sun
The remnants of Comet are presently in the morning sky as seen from Earth’s Southern Hemisphere.
Scientists solved the mystery of comet’s green shade
The team solved this mystery with the help of a vacuum chamber, many lasers, and one powerful cosmic reaction.
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...
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...