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Milky Way is about half as massive as Andromeda galaxy, say astronomers
Dark matter makes up 90% of the matter in both systems, the study finds.
July 30, 2014
101 geysers on Enceladus, ice moon of Saturn
Researchers have concluded that the only plausible source for the geysers is an underground sea now known to exist beneath Enceladus' icy surface.
July 29, 2014
We’re in the early days of Earth’s sixth great extinction, say biologists
Since 1500, more than 320 land animals have gone extinct. Populations of the remaining species show a 25 percent average decline.
July 29, 2014
Mars rover set an off-world driving distance record this week
NASA’s Opportunity rover, still going after 10 years on Mars, now holds the off-Earth roving distance record with 25 miles of driving.
July 29, 2014
Did all dinosaurs have feathers?
A newly-discovered species suggests that feathers were much more common among dinosaurs than once thought.
July 28, 2014
Webcam sees baby sea turtles hatch and head toward sea
These baby loggerhead sea turtles hatched from their eggs and began their march to the sea on the night of July 25.
July 28, 2014
Perseid meteor shower kicks off! Fireballs detected this weekend
Earth has just entered the stream of debris left behind by Comet Swift-Tuttle, the parent comet of the Perseids. Now is the time to start watching for meteors.
July 27, 2014
Can we find aliens by looking for their pollution?
Maybe some extra-terrestrials pollute their planets too.
July 25, 2014
See which parts of the U.S. are losing groundwater
This map shows the amount of water stored in underground aquifers in the U.S. on July 7, 2014, in contrast to the average from 1948 to 2009.
July 25, 2014
Nature’s roadblock to accurate seasonal hurricane forecasts
Nature itself puts up a roadblock to hurricane prediction - minor variations in the atmosphere - too small for seasonal forecast models to capture.
July 25, 2014
