20 years after Dolly

Everything you always wanted to know about the Dolly the cloned sheep and what came next, from a biomedical researcher and cloning expert.

Watch drone video of Falcon 9 landing

You've probably seen footage of rockets taking off, but here's Falcon 9 returning to Earth and landing safely after its launch on Sunday.

Help astronomers look for Planet 9

There might be an unknown 9th planet that orbits far from Earth, on the outer fringes of our solar system. You can help astronomers find it, if it exists!

Watch SpaceX Dragon launch February 18

SpaceX is scheduled to launch its Dragon spacecraft resupply mission to the International Space Station no earlier than 10:01 a.m. EST (1501 UTC) on Saturday, February 18. How to watch.

Toxic pollutants persist in deepest ocean

Banned chemicals from the 1970s have been discovered in the bodies of crustaceans in the deepest of Earth’s ocean trenches.

Wow! 2017 underwater photo contest winners

Winners of the 2017 Underwater Photographer of the Year (UPY) contest. How do you choose a favorite?

Slooh astronomers catch comet breakup

Will comet 73P/Schwassmann-Wachmann survive its March 16 sweep near the sun, or disintegrate into a trail of cosmic dust?

Round object crosses the moon

During Friday's penumbral eclipse of the moon, an observer in Puerto Rico captured images of a black disk moving across the moon's face.

Full braking at Alpha Centauri

Space visionaries might have figured out a way to travel within decades to the nearest star system, Alpha Centauri. But, once we get there, how do we slow down?

Sky solution to help endangered species

An astrophysicist and an ecologist are combining their expertise using drones, thermal cameras and the techniques used to analyse objects in space in order to help endangered species.