Science

Earth's cosmic address

What is our cosmic address?

M17 Omega Nebula by Tom Bishton, Gold Coast Hinterland, Australia. Equipment: Black Diamond ED120 Refractor, AZEQ6 Mount, ST80 Guidescope, Synguider, Canon 600D (modded)

The Omega Nebula is helping astronomers learn how massive stars form

Did Venus once have oceans? What can Venus today tell us about climate change on Earth? Credit: NASA

What can Venus tell us about climate change on Earth?

The Boomerang Nebula: a planetary nebula considered to be the coldest known place in the entire Universe. Credit: European Space Agency, NASA

Where is the coldest place in the Universe?

Image of an asteroid colliding and blocking out a star's light. Credit: NASA

A beginner’s guide to asteroids

The red giant star Betelgeuse (the prominent orange-red star above centre in this image), as it appears in the constellation of Orion. Credit: Rolf Löhr / CCDGuide.com

A guide to star Betelgeuse

mysteries universe cosmic question mark

9 of the biggest mysteries in the Universe

Venus, Jupiter, Orion and The Pleiades in twilight by Jarrod Bennett, Saint Gregoire, Provence, France. Equipment: Canon 450D.

An astronomer’s guide to twilight

Winter halo Tom Wildoner, Pennsylvia, USA, 29 December 2020 Equipment: Canon 6D DSLR, Canon EF 17–40mm f4 USM lens

What causes a ring or halo around the Moon?

23rd November 2015. Saturn’s moon Tethys floating in the foreground of its parent planet. The moon is composed mainly of water ice, much like the rings of Saturn. (Credit: NASA/JPL-Caltech/Space Science Institute)

Can a moon have a moon?

Orion over Carlton Marshes George Roberts, Lowestoft, Suffolk, 3 January 2022 Equipment: Canon 600D DSLR, Sigma EX 10–20mm lens, Sky-Watcher Star Adventurer mount

Astronomy explained Why are some stars red and other blue?

NASA's SOFIA flying observatory

How NASA’s SOFIA flying observatory views the Universe in infrared

Artist’s impression of a gravitational lensing event caused by the mass of a solo black hole. Credit: VChan / iStock / Getty Images Plus

Astronomers may have found a solo black hole wandering through space

Could the Drake equation be used to calculate the likelihood that alien life exists somewhere in the Galaxy? Credit: maxwellcitizenkepler / Getty

A formula for alien life? Understanding the Drake Equation

How did the Moon form? Credit: Mark Garlick / Science Photo Library / Getty Images

How did the Moon form?