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Comet Ocean Theory Debunked

Data from the Rosetta mission debunk the notion that comets brought Earth's ocean water. Now they're hoping asteroids could have.

Astrobiology Hopes Diminish

Recent findings both near and far create challenges for beliefs that life is common in the universe.

Earthbound Martians Go Nuts

How 90,000 Earthlings sent greetings to imaginary friends on Mars, and other Martian nuttiness.

Star Trek for Real: Impenetrable Force Field Protects Earth

Radiation belts discovered at the dawn of the space age have a new trick in their pocket: shielding the Earth.

Quasar Alignment Is "Spooky"

Quasar rotation axes show a peculiar alignment over billions of light-years.

Comet Lander Working, But Not Optimal

Rosetta's Philae lander hopped twice before landing in the shade in a tilted position, but the instruments are working.

Rosetta's Philae: ESA Lands Probe on Comet

Another space first: the European Space Agency's Rosetta mission landed its Philae probe on a comet this morning, but will it stick?

Astronomers Missed Half the Visible Universe

Dark matter is still a mystery, but meanwhile, half of the real stars in the universe have been hiding in plain sight.

Mercury, Moon May Still Be Erupting

Two objects that should be old and dead show surprising activity. Other indications of youthfulness in the solar system are noted.

Moon's Stabilizing Influence Depends on Star Size

A connection between multiple factors was noted in a recent model of how a moon helps a planet remain habitable.

NASA Throws Tax Millions to Evidence-Free Astrobiology Projects

Astrobiology has yet to establish that it has a subject to study, but NASA is giving millions of tax dollars to multiple teams, including SETI researchers.

Lunar Impact: Major Moon Basin Was Not a Big Hit

The theory of how the largest impact basin on the moon was formed has been turned upside down.

China Celebrates Non-Discovery of Dark Matter

A huge dark matter detector in China celebrated the publication of its first results: nothing.

Left-Handed Life: Is the Chirality Problem Near Solution?

Cells use only left-handed amino acids and right-handed sugars. A new hypothesis involving the weak nuclear force tries to address this asymmetry.

Of Stars and Significance

The farther out we look, the more questions we have. But does secular astronomy ask the right questions?
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