An astronomer explains why space looks so dark despite containing 200 billion trillion stars.
Academic rigor, journalistic flair
Articles on Doppler effect
Displaying all articles
The planet Halla looks like it should have been devoured by its host star, a red giant called Baekdu – but a secret in the star’s past may hold the answer to the planet’s present.
Can artificial intelligence transform the search for alien intelligence?
Twisted sound beams suggest an advanced civilisation may be able to harness immense amounts of power from a black hole.
It’s all about the strong gravitational field of the black hole.
An astronomer suggests an idea to piggyback on the ambitious Breakthrough Starshot project that aims to send nano spacecraft to Alpha Centauri at a major fraction of the speed of light.
If there are infinite stars – where is all the light?
When an ambulance passes with its siren blaring, you hear the pitch of the siren change: as it approaches, the siren’s pitch sounds higher than when it is moving away from you. This change is a common…
Top contributors
-
Lecturer in Optical Physics Science and Engineering Faculty, Queensland University of Technology
-
Research Professor and Director of the International Institute for Accelerator Applications, University of Huddersfield
-
Professor of Quantum Technologies, University of Glasgow
-
Professor of Astrophysics, University of Nevada, Las Vegas
-
Postdoctoral Research Fellow in Astrophysics, University of St Andrews
-
PhD Candidate in Physics, University of Glasgow
-
Sir Bernard Lovell chair of Astrophysics and Director of Jodrell Bank Centre for Astrophysics, University of Manchester
-
Astronomer, University of Sydney
-
Associate Professor of Astronomy, Boise State University
