Comets TOP STORY

International Effort Studies Comet 29P and Finds Unusual Composition

© Far Eastern Federal University

Comet 29P

Evgenij Zubko of Far Eastern Federal University (FEFU) in collaboration with other international team members has developed a comprehensive model to explain the results of a photometric study of the Comet Schwassmann-Wachmann 1 (29P).


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Comets TOP STORIES

Landslides, Avalanches May Be Key to Long-Term Comet Activity

© ESA Copernicus

Comet 67P

The release of gases through sublimation is the defining process of comets.

TESS Catches a Comet Before Starting Science

TESS Catches a Comet Before Starting Science

Before NASA's Transiting Exoplanet Survey Satellite (TESS) started science operations on July 25, 2018, the planet hunter sent back a stunning sequence of serendipitous images showing the motion of a comet.


Molecular Oxygen in Comet 67P's Atmosphere Was Not Created On Its Surface

Molecular Oxygen in Comet 67P's Atmosphere Was Not Created On Its Surface

Scientists have found that molecular oxygen around comet 67P is not produced on its surface, as some suggested, but may be from its body.


Hubble Sees 'Oumuamua Getting a Boost, Like a Comet

Hubble Sees 'Oumuamua Getting a Boost, Like a Comet

'Oumuamua -- the first interstellar object discovered within our solar system -- has been the subject of intense scrutiny since its discovery in October 2017.


′Oumuamua Was Propelled By Cometary Jets

′Oumuamua Was Propelled By Cometary Jets

Observations from Hubble and ground-based observatories have confirmed ′Oumuamua got an unexpected boost in speed and shift in trajectory as it passed through the inner solar system last year.


Interstellar Asteroid 'Oumuamua Is Actually A Comet

Interstellar Asteroid 'Oumuamua Is Actually A Comet

An object from another star system that made a brief appearance in our skies guised as an asteroid turns out to be a tiny interstellar comet.


Rosetta Unravels Formation of Comet's Sunrise Jets

Rosetta Unravels Formation of Comet's Sunrise Jets

The atmosphere of Rosetta's comet 67P/Churyumov-Gerasimenko is far from homogeneous.


Comet 96P Spotted by ESA, NASA Satellites

Comet 96P Spotted by ESA, NASA Satellites

Comet 96P entered the bottom of STEREO's view and crossed it diagonally before leaving on Oct. 28.


Rosetta Reveals Missing Link In Understanding of Planet Formation

Rosetta Reveals Missing Link In Understanding of Planet Formation

The missing link in our understanding of planet formation has been revealed by the first ever spacecraft to orbit and land on a comet, say German scientists.


Planets Form From Comets

Planets Form From Comets

Narrow dense rings of comets are coming together to form planets on the outskirts of at least three distant solar systems, astronomers have found in data from a pair of NASA telescopes.


Hubble Observes the Farthest Active Inbound Comet Yet Seen

Hubble Observes the Farthest Active Inbound Comet Yet Seen

NASA's Hubble Space Telescope has photographed the farthest active inbound comet ever seen, at a whopping distance of 1.5 billion miles from the Sun (beyond Saturn's orbit).


Large, Distant Comets More Common Than Previously Thought

Large, Distant Comets More Common Than Previously Thought

Comets that take more than 200 years to make one revolution around the Sun are notoriously difficult to study.


Strange Comet Challenging Researchers

Strange Comet Challenging Researchers

Scientists pursue research through observation, experimentation and modeling. They strive for all of these pieces to fit together, but sometimes finding the unexpected is even more exciting.


Explaining An Oxygen Mystery on Comets

Explaining An Oxygen Mystery on Comets

A Caltech chemical engineer who normally develops new ways to fabricate microprocessors in computers has figured out how to explain a nagging mystery in space -- why comets expel oxygen gas, the same gas we humans breathe.


Watching Landslides On A Comet

Watching Landslides On A Comet

Sudden and short-lived outbursts were observed frequently during Rosetta's two-year mission at Comet 67P/Churyumov-Gerasimenko.


NASA Study Hints at Possible Change in Water 'Fingerprint' of Comet

NASA Study Hints at Possible Change in Water 'Fingerprint' of Comet

A trip past the sun may have selectively altered the production of one form of water in a comet - an effect not seen by astronomers before, a new NASA study suggests.


Arecibo Observatory Images Comet 45P/Honda-Mrkos-Pajdusakova

Arecibo Observatory Images Comet 45P/Honda-Mrkos-Pajdusakova

Though not visible to the naked eye or even with binoculars, the green-tailed Comet 45P/Honda-Mrkos-Pajdusakova (HMP) did not escape the gaze of the world-renowned Arecibo Observatory.



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