Astronaut Bruce McCandless floats untethered away from the safety of the space shuttle, with nothing but his Manned Manoeuvring Unit keeping him alive. The first person in the history to do so.

A GIANT asteroid discovered by NASA’s trackers only last week is now barreling towards the Earth, the US space agency revealed.

Astronomers spotted gaps in the dusty discs around stars that can only be filled by planets.

While inspecting a known globular cluster, a team of astronomers began to notice that some of its stars didn’t seem to belong. Investigating further, they realized the anomalous stars were part of a nearby galaxy—one previously unknown to us.

Science works in mysterious ways.

One moment you’re investigating a globular cluster, and the next you’re unexpectedly writing a research paper about something else entirely, namely the discovery of previously unknown dwarf spheroidal galaxy. But that’s how it goes sometimes, and the authors of the new study, published this week in the Monthly Notices of the Royal Astronomical Society, couldn’t be happier.

The following is a transcript of the video

Alex Appolonia: This is almost half a million gallons of water being blasted a hundred feet into the air.

The most impressive part? It was all done in just 60 seconds.

NASA created the massive fountain as part of a test for its Space Launch System, scheduled to launch for the first time in 2020.

Astrochemists are chemically tracking our solar system’s building blocks of life back to interstellar space.