Search results for comets

Space Exploration May 23, 2018

Rosetta unravels formation of sunrise jets

The atmosphere of Rosetta's comet 67P/Churyumov-Gerasimenko is far from homogeneous. In addition to sudden outbursts of gas and dust, daily recurring phenomena at sunrise can be observed. In these, evaporating gas and entrained ...

Optics & Photonics May 18, 2018

Researchers mimic comet moth's silk fibers to make 'air-conditioned' fabric

Fabrics made from silkworm fibers have long been treasured for their beautiful luster and refreshing coolness. Columbia Engineering researchers have discovered that fibers produced by the caterpillars of a wild silk moth, ...

Space Exploration May 14, 2018

Tracking the threat of asteroids and comets

In 1994, astronomers watched in awe as the comet Shoemaker-Levy 9 crashed into the planet Jupiter, creating massive fireballs exploding with the force of six million megatons of TNT—equivalent to 600 times the world's nuclear ...

Space Exploration Mar 30, 2018

Comet provides rare chance to study solar system's origins

More samples of comets are urgently required to better understand the early history of the solar system, say researchers analyzing comet dust brought back to Earth by NASA's Stardust mission in 2006.

Astronomy Mar 21, 2018

Evidence that a star disturbed prehistory solar system comets

About 70,000 years ago, during human occupation of the planet, a small, reddish star approached our solar system and gravitationally disturbed comets and asteroids. Astronomers from the Complutense University of Madrid and ...

Space Exploration Mar 14, 2018

Asteroids and comets shower Mars with organics

Asteroids and comets appear to be a much more important supplier of organic molecules on Mars than expected. Until now, astronomers assumed that the organics on Mars mainly came from dust particles from space. Now, computer ...

General Physics Mar 13, 2018

Scientists help solve mystery of why comets emit X-rays

The mystery of why comets travelling through Space give off X-ray emissions has been solved thanks to new research undertaken by a team that included science staff from STFC's Central Laser Facility (CLF) and RAL Space.

Astronomy Mar 6, 2018

Comet Chury's late birth

Comets which consist of two parts, like Chury, can form after a catastrophic collision of larger bodies. Such collisions may have taken place in a later phase of our solar system, which suggests that Chury can be much younger ...

Space Exploration Feb 5, 2018

The three surprises of 'Oumuamua

One of the defining moments in planetary astronomy in 2017 is that this is the year we discovered the first astronomical object to enter the Solar System from interstellar space. Now known as `Oumuamua (Hawaiian for "scout"), ...

Space Exploration Jan 23, 2018

How comet dust reveals the history of the solar system

We are not used to considering dust as a valuable material – unless it comes from space. And more precisely, from the comet 67P/Churyumov-Gerasimenko. An analysis of its dust has provided valuable information about this celestial ...

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