Short-lived insects, like crickets, “get old," - that is, lose some of their physical abilities – before they die, new research shows.

Our sun's planets orbit in a plane extending from the sun's equator. Astronomers have found a double-star system whose planet-forming disk has flipped up - perpendicular to what we'd expect - over the poles. What would nature be like on one of these worlds?

New clues from fossils from the oldest soils on Earth suggest that multicellular, land-dwelling organisms might have emerged much earlier than we thought.

New observations of Venus' atmosphere by the Japanese orbiter Akatsuki - combined with supercomputer simulations - have revealed giant symmetrical streaks never seen before.

ESA’s Mars Express spacecraft began sending back images from its orbit around Mars in January 2004. Take 5 minutes to see some of the coolest images of the mission so far.

Singing humpback whales from different ocean basins seem to be picking up musical ideas from afar, and incorporating these new phrases and themes into their songs.

Saturn’s largest moon Titan is enveloped in a thick atmosphere, but the infrared camera on the Cassini spacecraft was able to reveal the moon’s myriad of surface features.

The 2 brightest planets are easy to spot in the east before dawn now. Plus they're getting closer! The Venus-Jupiter conjunction will come on the morning of January 22.

One of the most cherished science fiction scenarios is using a black hole as a portal to another dimension or time or universe. Is it possible? Maybe. But choose carefully. All black holes are not created equal.

Although people sometimes call them "upside-down rainbows," they're made not by rain, but by by ice crystals in the upper atmosphere.