Related topics: asteroid

Features on asteroid revealed by radar

(PhysOrg.com) -- Radar imaging at NASA's Goldstone Solar System Radar in the California desert on Dec. 11 and 12, 2010, revealed defining characteristics of recently discovered asteroid 2010 JL33. The images have been made ...

Ammonites' last meal: New light on past marine food chains

Scientists have discovered direct evidence of the diet of one of the most important group of ammonites, distant relatives of squids, octopuses and cuttlefishes. The discovery may bring a new insight on why they became extinct ...

The day the algae died

The P-T mass extinction may have been instigated by populations of algae dying. According to one group of scientists, this die-off of large numbers of relatively simple life forms caused a crash in the ocean's entire food ...

Australian researcher discovers giant asteroid impact

(PhysOrg.com) -- A geothermal energy researcher from the University of Queensland (UQ) has found evidence of a major asteroid impact that occurred more than 300 million years ago in the South Australian outback.

Counting Titan's Craters

Impact craters found on Titan could help scientists determine the age of this Earth-like moon and its potential for life.

A Tale of Planetary Woe (w/ Video)

Once upon a time — roughly four billion years ago — Mars was warm and wet, much like Earth. Liquid water flowed on the Martian surface in long rivers that emptied into shallow seas. A thick atmosphere blanketed the planet ...

LADEE Mission to Study the Moon's Fragile Atmosphere

Right now, the Moon is a ghost town. Nothing stirs. Here and there, an abandoned Apollo rover — or the dusty base of a lunar lander — linger as silent testimony to past human activity. But these days, only occasional ...

NASA scientist: No Doomsday in 2012

According to NASA scientist David Morrison, the widespread Internet rumor that the world will end in 2012 due to some astronomical event is a hoax. Dr. Morrison attributes the hype to 'cosmophobia' fueled by fake science ...

Exploring the asteroid Apophis with small satellites

The author of a disaster novel couldn't have dreamed it up any better: On a Friday, the thirteenth of all days, the potentially dangerous asteroid (99942) Apophis will come extremely close to humanity.

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