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  Comet bombardment may have helped ancient Mars support life

Comet bombardment may have helped ancient Mars support life

The impacts would have produced regional hydrothermal systems on Mars similar to those in Yellowstone National Park, which today harbour chemically powered microbes, some of which can survive boiling in hot springs or inhabiting water acidic enough to dissolve iron nails, said study co-author Stephen Mojzsis from the University of Colorado at Boulder. 

When Giotto met Comet Halley 30 years ago – Watch!

When Giotto met Comet Halley 30 years ago – Watch!

This week, scientists are celebrating the 30th anniversary of Giotto spacecraft’s close encounter with Comet Halley.

Goodbye Philae! Earth to bid adieu to comet probe

Goodbye Philae! Earth to bid adieu to comet probe

The robotic lander has not called home to the European Space Agency's Rosetta mission since its last call to mothership Rosetta seven months ago.

Philae comet probe: World prepares for final farewell

Philae comet probe: World prepares for final farewell

Philae is a robotic lander that accompanied the Rosetta spacecraft until it landed on comet 67P/Churyumov–Gerasimenko.

Indian-led scientists' team discover why comet appears black

Indian-led scientists' team discover why comet appears black

Centaurs estimated to number around 44,000 are minor planets with diameters larger than one kilometre.

Wish Happy New Year to rare comet on January 1

Wish Happy New Year to rare comet on January 1

Did you get a pair of binoculars or a telescope? If so, you can put them to the test by searching the Eastern sky for a view of a fuzzy comet on the first day of 2016.

Comet, asteroid showers caused earlier mass extinctions

Comet, asteroid showers caused earlier mass extinctions

A team of researchers has blamed comet and asteroid showers for the mass extinctions occurring over the past 260 million years.

Skywatchers' delight: When and how to watch the dazzling Geminids meteor shower!

Skywatchers' delight: When and how to watch the dazzling Geminids meteor shower!

As Geminids meteor shower light up the sky in December, skywatchers around the globe have been treated to yet another stunning astronomical event this month.

Halloween flyby asteroid “Spooky” a dead comet?

Halloween flyby asteroid “Spooky” a dead comet?

The asteroid, known as 2015 TB145, was first spotted on October 10, 2015 by the Panoramic Survey Telescope & Rapid Response System (Pan-STARRS), located on Hawaii's Mount Haleakala.

Rosetta space probe detects oxygen on comet 67P

Rosetta space probe detects oxygen on comet 67P

The Rosetta space probe has been studying the comet for over a year and has detected an abundance of different gases pouring from its nucleus.

Discovery of oxygen on comet 'big surprise': Study

Stunned scientists announced today the unexpected discovery of large quantities of oxygen on a comet which streaked past the Sun in August with a European spacecraft in tow.

Asteroid showers caused mass extinctions on Earth

Asteroid showers caused mass extinctions on Earth

Mass extinctions which occurred over the past 260 million years were likely caused by comet and asteroid showers, scientists report.

Watch out: Annual Orionid meteor shower to hit its peak overnight tonight

Watch out: Annual Orionid meteor shower to hit its peak overnight tonight

Orionid meteors appear every year around this time, when Earth travels through an area of space littered with debris from Halley’s Comet.

Citizen scientists discover 3,000th comet

Citizen scientists discover 3,000th comet

The Solar and Heliospheric Observatory (SOHO) - a joint project of the European Space Agency (ESA) and NASA - has discovered its 3,000th comet, cementing its standing as the greatest comet finder of all time.

Devastating comet to hit Earth in next 20 years, claims best-selling author

Devastating comet to hit Earth in next 20 years, claims best-selling author

Graham Hancock, the best-selling author has claimed that a devastating comet – big enough to end life as we know it - is hitting the Earth in next 20 years.

'Hedgehog' robots will hop, tumble in microgravity

'Hedgehog' robots will hop, tumble in microgravity

Researchers have developed the prototypes of a 'hedgehog' robot that will explore small bodies, such as an asteroid or a comet, by hopping and tumbling on the surface instead of rolling on wheels.

Rosetta hits `milestone` in comet`s run past Sun

 The European space probe Rosetta captured a range of scientific data Thursday as it trailed an ancient comet past the Sun which could help scientists better understand the origins of life on Earth.

Rosetta spacecraft captures dramatic comet outburst ahead of perihelion

Rosetta spacecraft captures dramatic comet outburst ahead of perihelion

European probe Rosetta spacecraft has recently captured a brilliant plume of gas and dust erupted from the comet Comet 67P/Churyumov-Gerasimenko.

Philae results help understand the nature of comets

A new analysis of several studies on data sent back Philae has helped the scientists understand the nature of comets better than ever, and may be beneficial for future missions.

Robot lab Philae `silent`, says worried ground control

Robot lab Philae `silent`, says worried ground control

Europe`s robot lab Philae has fallen "silent" on the surface of a comet zipping towards the Sun, said ground controllers Monday who fear it may have shifted out of radio reach.