Dr Alastair Gunn

Alastair is a radio astronomer at the Jodrell Bank Centre for Astrophysics at the University of Manchester.

Recent articles by Dr Alastair Gunn

How tall is the Universe? © Getty

How tall is the Universe?

Do any other planets have tectonic plates? © Getty Images

Do any other planets have plate tectonics?

Why does the Earth spin? © Getty Images

Why does the Earth spin?

Is it true that Venus has its own form of rainbow? © ESA/MPS

Is it true that Venus has its own form of rainbow?

Does the Sun make a sound? © Getty

Does the Sun make a sound?

Could we ever detect other universes? © Getty Images

What is the Universe expanding into?

What do the other planets smell like? © Getty Images

What do the other planets smell like?

How big could a black hole get? © Getty Images

How big could a black hole get?

Could a gas moon exist? © NASA

Could a gas moon exist?

Why do objects in space follow elliptical orbits? © Getty Images

Why do objects in space follow elliptical orbits?

© NASA

If the Universe is expanding, why is the Andromeda galaxy on course to collide with the Milky Way?

Space junk © Getty Images

Is space junk a serious problem?

Are there any stars between galaxies? © Getty Images

Are there any stars between galaxies?

Why isn't the Earth a perfect sphere? © Getty Images

Why isn’t the Earth a perfect sphere?

Could we use radiometric dating on ‘Oumuamua?

Could we use radiometric dating on ‘Oumuamua?