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.
In one second, this distant pulsar – the spinning remains of a once-massive star – emits the same amount of energy as that released by our sun in 3.5 years.
NGC 5907 X-1: record-breaking pulsar. Image via ESA.
A new ‘tree of life,’ showing how horses have evolved over the past 18 million years challenges long-held ideas.
Image via: Science// Mauricio Antón
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!
A very blue Neptune-like planet, dubbed Planet 9, may be lurking dozens of times further from the sun than Pluto, as depicted in this artist’s rendering. Image via NASA.
On February 20, 1962, John Glenn became the 1st American to orbit Earth and the first American space hero.
John Glenn and Friendship 7
Your dog or cat might look as if it’s dreaming when its whiskers twitch and legs wiggle. But are animals really dreaming?
At a very steady rate, unstable carbon-14 gradually decays to carbon-12. The ratio of these carbon isotopes reveals the ages of some of Earth’s oldest inhabitants.
Image via Ethan Siegel, Simon Swordy, NASA
Some extremely large and hot stars blaze away with the luminosity of a million suns! But other stars look bright only because they’re near Earth.
Our local star. Image via NASA
A last quarter moon rises around midnight. It appears half illuminated from Earth. The exact last quarter phase will come on February 18, 2017 at 19:33 UTC.
The moon was almost exactly at last quarter when Jenney Disimon in Sabah, North Borneo captured this photo on July 27, 2016 (5:30 a.m. local time, or July 26 at 21:30 UTC).