Science

Galaxy clusters are ideal objects to study in the search for dark energy. Credit: ESA/Hubble & NASA, RELICS

What is dark energy, and how are astronomers trying to find it?

Extraterrestrials Wade Roush MIT Press

Where are all the aliens? The Fermi Paradox and search for extra-terrestrial intelligence

Image by the Copernicus Sentinel-5P satellite, showing average nitrogen dioxide concentrations over Portugal and Spain, 14 to 25 March 2020. Credit: contains modified Copernicus Sentinel data (2019-20), processed by KNMI/ESA

Coronavirus Does lockdown mean clearer skies for astronomers?

Beth Healey at her home from home: the Concordia Research Station. Credit: ESA/IPEV/PNRA–B. Healey

How to cope with isolation Lessons from a space doctor in Antarctica

Greta Thunberg takes to the stage, Rome, Italy, 19 Apr 2019. Credit: insidefoto srl/Alamy Live News

Environment How can astronomy help us protect Earth?

Asterisms (shown in red) can cross constellations, which are in fact regions of sky, not just the main patterns. Credit: Pete Lawrence

Constellations and asterisms: what’s the difference?

CVMP 1, seen by the Gemini South Telescope

Eye On The Sky Gemini South Telescope views a dying star

Ophiuchus galaxy cluster explosion

Eye On The Sky Astronomers capture biggest explosion ever seen

Why do M-class red dwarfs appear to disperse their protoplanetary discs more slowly than other stars? Credit: ESO

Peter Pan discs: the planetary systems that never grow up

ESO’s Very Large Telescope images of Betelgeuse. Left: January 2019, before dimming. Right: December 2019, during dimming. Credit: ESO/M. Montargès et al.

Betelgeuse is brightening up again

ESA Explores podcast host Stephen Ennis pictured with with ESA astronaut Luca Parmitano. Credit: ESA

Podcasts Bingeworthy space and astronomy shows for self-isolation

Radio Astronomy, the monthly podcast from the makers of BBC Sky at Night Magazine.

Access every episode of our podcast Radio Astronomy

The dynamo effect of the Earth’s spinning molten core produces our planet’s magnetic field, which prevents the solar wind from stripping away our atmosphere. Credit: Naeblys / Getty Images

What are magnetic fields and how do they shape the Universe?

Artist’s impression of a young star surrounded by a protoplanetary disc. Our Solar System may have looked like this in its infancy. Credit: ESO/L. Calçada

Rings of the Solar System

How would religion react to the discover of extra intelligence? Credit: NASA/Chris Gunn

How would religion react if we discovered extra-terrestrial life?