The JWST mirror covers off for a few days this week, and webcams are set up at Goddard Space Flight Center. Watch!
The meltdown at the Chernobyl Nuclear Power Plant on April 26, 1986 exposed 572 million people to radiation. It was far worse than the 2011 Fukushima accident.
It’s their active season. Here are 10 things to know about these venomous spiders that like to live where we do.
As Earth spins under the sky, the stars appear to move. When a camera captures that movement, that’s called a star trail. Plus … an astrophotographer explains how he does it.
April 22, 1970 – Arbor Day – was the first Earth Day. Today, a common practice in celebration of Earth Day is still to plant new trees.
Lots of non-humans – octopuses, crows, monkeys, machines – are intelligent. Could some also be conscious?
No, there won’t be a green moon on April 20, 2016 … or on May 29. Some possible origins of this latest urban legend.
Japan was struck by a 7.0-magnitude earthquake on April 15, 2016. One day later, on April 16, Ecuador was struck by a 7.8-magnitude earthquake.
Gravity does far more than make things fall down. It governs the motion of planets around the sun, holds galaxies together and determines the structure of the universe.
Study finds higher rate of illness and death in newborns and juvenile bottlenose dolphins after Deepwater Horizon oil spill.