Newly named dinosaur had a keen nose

It was a fierce predator, "not a dinosaur you'd want to mess with," said the scientist whose analysis of an ancient skull revealed a brand new species.

Video: Paddle boarders meet orcas

Imagine you're paddle-boarding, and an orca - killer whale - pops up on the ocean surface near you. Two amazing and beautiful videos, here.

SpaceX Dragon is back on Earth

SpaceX confirmed splashdown of Dragon in Pacific Ocean at 12:42 pm ET (1642 UTC), 155 miles SW of Long Beach, California.

Why your fingertips wrinkle when wet

If you place your fingertips in water for a few minutes, they begin to look wrinked. Why?

Oldest stone tools found in Kenya

The tools, whose makers may or may not have been some sort of human ancestor, date back to 3.3 million years ago.

North Atlantic circulation slowing down already?

A predicted global warming effect is a slowdown in North Atlantic Ocean circulation. New research shows recent decreases that are unprecedented in the past 1,100 years.

Opah, the first truly warm-blooded fish

It circulates heated blood through its body as mammals and birds do. Its warm blood makes the opah a high-performance predator that swims faster, sees better.

See it! Best photos of moon, Venus, Jupiter

Photos from EarthSky community of the young moon, and bright planets Venus and Jupiter on these May evenings, 2015. Watch for them in the west!

LightSail launch success!

Sailing on sunbeams. LightSail successfully launched May 20 at 11:05am EDT (1505 UTC). Info on how to follow from here, below.

A balancing rock on Rosetta’s comet?

In close-up images via the orbiting Rosetta spacecraft, the rock looks poised like a ballerina, with only a tiny fraction of its surface touching the ground.