NASA, ISS, 3-D printing, Barry Wilmore

NASA 3D prints on the ISS

Astronauts on board the International Space Station have 3D printed for the first time in space


Why are all the planets round?

Planets are basically round because of the way that gravity works – if you imagine all of a planet’s mass concentrated at its core, then it’s pulling with equal force in every direction. Provided the gravity is strong enough and … Continued


Is it possible to build a time machine?

So far it is only possible to travel forward in time, and only by fractions of a second. Imagine there are two identical twins; the first travels into space in a high-speed rocket, while the other remains on Earth. When the … Continued

Enceladus, William Herschel, NAS, Cassini, Deep Space Network, space, picture, Saturn, moon, water, ocean

225 years of Enceladus

It’s 225 years to the day since William Herschel discovered Saturn’s moon Enceladus.



Earthquakes on the moon???

light curve, space, star, planet, exoplanet, video, animation, star

What is a light curve?

Discover how we work out the size of exoplanets from their light curves


The mapping of Venus

On this day in 1990, the Magellan spacecraft began to search Venus

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