Cosmic gorilla effect could blind detection of aliens

Could it be that the more rational and methodical searches for extraterrestrial intelligence are overlooking "the gorilla in the room?" A new study suggests it's possible.

Whoa! New and giant telescopes ahead

Telescope technology has come a long way. Here are 4 new amazing machines for observing the universe, both from space and from Earth.

Goodbye Kepler, hello TESS: Passing the baton in exoplanet search

When NASA first started planning the Kepler mission, no one knew if the universe held any planets outside our solar system. Thousands of exoplanets later, the search enters a new phase.

Look up: It’s a satellite!

"I use the Heavens Above astronomy site or the Starry Night app to check on satellites ... they are fun to spot."

Top 10 things about brown recluse spiders

It's their active season. Here are some things you might not know.

Does space weather threaten high-tech life?

The wired Earth of the 21st century is at the mercy of the volatile nature of the sun, says a scientist who studies solar storms.

Blackbirds in the city: Bad health, longer life

Blackbirds live longer in cities than in forests. But a new genetic analysis suggest that city birds have much poorer health than their rural cousins.

Watch a robot fish swim in the ocean

MIT computer scientists have developed SoFi - a soft, robot fish made of silicone rubber - that can swim alongside real fish in the ocean.

Mysterious skeleton is human, not alien

It turns out that this strange tiny skeleton is without a doubt human.

Watch spacewalk live March 29

On Thursday, 2 astronauts will perform a spacewalk. The spacewalk is scheduled to begin at about 12:10 UTC (8:10 a.m. EDT) and will last about 6.5 hours. How to watch live.