Archive: 03/21/2011

The importance of being magnetized

Despite its magnetic field, Earth is losing its atmosphere to space at about the same rate as planets that lack this protective barrier against the solar wind. Scientists now are beginning to question whether ...

Mar 21, 2011
4.8 / 5 (12) 12 | with audio podcast

The skull of extinct birds revealed

Birds are the most diverse clade on the planet, and the skull of the living bird is one of the most highly modified and morphologically variable regions of their skeleton. The large diversity of enantiornithine ...

Mar 21, 2011
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Beverage calories shock consumers

Americans may like their drinks "sickeningly sweet," but a new labeling initiative may discourage us from gulping unnecessary calories, said Jessica Bartfield, MD, medical weight-loss specialist at Gottlieb Memorial Hospital.

Mar 21, 2011
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Doubly special relativity

General relativity, Einstein’s theory of gravity, gives us a useful basis for mathematically modeling the large scale universe – while quantum theory gives us a useful basis for modeling sub-atomic ...

Mar 21, 2011
3.7 / 5 (15) 4

New Horizons flies by Uranus

The Pluto-bound New Horizons spacecraft will fly by another planet today (March 18, 2011). However, the robotic craft won’t be taking any images as it zooms past Uranus’ orbit at about 6 p.m. EDT, ...

Mar 21, 2011
4.3 / 5 (8) 2

Turn to space tech when under pressure

When engineers come up with a super-strong new material for building shipping containers, trucking trailers and aircraft parts, it is a major challenge to simulate its strength and reliability accurately. ...

Mar 21, 2011
5 / 5 (1) 0

Stars gather in 'downtown' Milky Way

(PhysOrg.com) -- The region around the center of our Milky Way galaxy glows colorfully in this new version of an image taken by NASA's Spitzer Space Telescope.

Mar 21, 2011
5 / 5 (5) 2 | with audio podcast