News tagged with earth

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Sydney switches off for Earth Hour

Sydney's Opera House and Harbour Bridge plunged into darkness Saturday for the Earth Hour environmental campaign, among the first landmarks around the world to dim their lights for the event.

Mar 29, 2014 2.2 / 5 (5) 3

A wet Moon

The Moon's status as a "dry" rock in space has long been questioned. Competing theories abound as to the source of the H20 in the lunar soil, including delivery of water to the Moon by comets.

Mar 26, 2014 5 / 5 (6) 1

Can light orbit a black hole?

Since black holes are the most powerful gravitational spots in the entire Universe, can they distort light so much that it actually goes into orbit? And what would it look like if you could survive and follow ...

Mar 25, 2014 4.4 / 5 (43) 97

Prepping for radar vision

Sentinel-1A, Europe's first satellite for Copernicus, is almost ready for launch on 3 April. Meanwhile, ESA is showing how its advanced radar will map ice, monitor subsidence and much more.

Mar 19, 2014 1 / 5 (1) 0