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Wet Planet: NASA Says Mars Once Held More Water Than Arctic Ocean

New maps of water in the atmosphere of Mars reveal that the Red Planet might once have had enough to cover up to a fifth of the planet, researchers say.<p>Further research to refine these maps could help guide the quest to identify underground reservoirs on Mars, the scientists added. A new NASA video …

Should We Save the Wolves of Isle Royale?

As the predators dwindle, experts debate whether to intervene.<p>The call of the wild in northern Michigan's Isle Royale National Park may be losing one of its voices: that of the gray wolf.<p>In 2009, scientists documented about 24 wolves living on this remote, forested island in Lake Superior (map). …

Big Bang, Deflated? Universe May Have Had No Beginning

If a new theory turns out to be true, the universe may not have started with a bang.<p>In the new formulation, the universe was never a singularity, or …

A Possible Solution to the Mystery of the Origin of Matter in the Universe

New NASA photo of the “Pillars of Creation” from the Hubble Telescope.<p><i>A new study from UCLA physicists offers a possible solution to the mystery of</i> …

Physics

Boötes void

The <b>Boötes void</b> (or the <b>Great Void</b>)[1] is an enormous, approximately spherically-shaped region of space, containing very few galaxies. It is located in …

Rare 'Missing Link' Black Hole Apparently Found

A newfound cosmic object may be a long-sought missing link that could help flesh out the black hole family tree.<p>The object appears to be an …

Black Holes

Nasa puzzled by strange shiny spots on Ceres

Nasa researchers have spotted something weird on the surface of the dwarf planet Ceres -- a pair of mysterious shiny patches that reflect …

Astronomy

The Night Sky in March 2015: Mice that spell doom for Earth

Impending collision of galaxies threatens mass extinctions in four billion years (so not before the solar eclipse)<p><i>The chart shows the sky at the beginning of March. The positions of the stars on other nights can be found from previous Night Sky charts</i> <i>for they rise two hours earlier each month.</i> …