Search results for comets

Space Exploration Aug 10, 2018

The cautionary tail of Comet Swift–Tuttle

Comet Swift–Tuttle, formally 109P/Swift–Tuttle, is an enormous, icy comet on a 133 year orbit around the Sun, and the reason for the spectacular annual Perseids meteor showers on Earth.

Astronomy Aug 9, 2018

The Umov Effect—space dust clouds and the mysteries of the universe

FEFU scientists are developing a methodology to calculate the ratio of dust and gas in comas and tails of comets. This will reveal more about the history of the solar system and its development, as well as to understand the ...

Space Exploration Aug 6, 2018

NASA's Planet-hunting 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. Taken over the ...

Space Exploration Aug 6, 2018

Image: Comet 67P/Churyumov-Gerasimenko horizon

On 6 August of 2014, after a decade of travelling through interplanetary space, ESA's Rosetta spacecraft arrived at its final target: Comet 67P/Churyumov-Gerasimenko (67P/C-G). The mission was the first to successfully land ...

Space Exploration Jul 3, 2018

Molecular oxygen in comet's atmosphere 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.

Space Exploration Jun 27, 2018

Comet or asteroid? Scientists ID interstellar visitor

Last year's visitor from another star system—a cigar-shaped object briefly tumbling through our cosmic neck of the woods—has now been identified as a comet.

Space Exploration Jun 22, 2018

Rosetta image archive complete

All high-resolution images and the underpinning data from Rosetta's pioneering mission at Comet 67P/Churyumov-Gerasimenko are now available in ESA's archives, with the last release including the iconic images of finding lander ...

Space Exploration Jun 20, 2018

US stepping up Earth's protection from asteroids, comets

The U.S. government is stepping up efforts to protect the planet from incoming asteroids that could wipe out entire regions or even continents.

Space Exploration Jun 18, 2018

Proposed CAESAR mission to return a sample from comet 67P/Churyumov–Gerasimenko

A proposed space mission known as the Comet Astrobiology Exploration Sample Return (CAESAR) could expand the knowledge of the origin and history of the comet 67P/Churyumov–Gerasimenko. If selected by NASA, it will return ...

Astronomy May 30, 2018

Comet C/2016 R2 (Pan-STARRS) is rich in carbon monoxide and depleted in hydrogen cyanide, study finds

C/2016 R2 (Pan-STARRS) is a comet abundant in carbon monoxide and lacking hydrogen cyanide, according to a new study conducted by researchers from the University of South Florida (USF) in Tampa, Florida. The finding is detailed ...

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