The pull created by a black hole is so strong that if you get too close to one – even if you are travelling away from it at the fastest speed it is possible to go – you will never be able escape.
The existence of wormholes is not forbidden by our current theories of the universe. So we can say that they do exist in theory.
Marcella Cheng/The Conversation NY-BD-CC
A wormhole is like a tunnel connecting two places in space. They would be incredibly useful and are great for science-fiction stories.
The problem is we haven’t found any evidence of them existing.
What could a ‘relativistic camera’ capture on the way to Alpha Centauri?
ESA/NASA
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.
From moon landing to space arms race.
NASA/Neil Armstrong
Pretty much as soon as we understood what galaxies were, we realised they are all moving away from each other. And the ones that are further away are moving faster. In short, the universe is expanding.
The things you can do with an amaterur telescope.
Shutterstock/AstroStar
With a little bit of knowledge and a few pieces of equipment you too can look at the night sky and see it as a cosmologist does.
Russian Foreign Minister Sergey Lavrov, left, welcomes his Iranian counterpart Mohammad Javad Zarif, ahead of their meeting in Moscow on May 14, 2018.
AP/Maxim Shemetov
New jobs and investment for Australia’s growing space industry are promised with the backing of the new space agency. It’s hoped that all states and territories will benefit from a national approach.
An artist’s illustration of a black hole “eating” a star.
NASA/JPL-Caltech
Eileen Meyer, University of Maryland, Baltimore County
Astronomers are gathering an exponentially greater amount of data every day – so much that it will take years to uncover all the hidden signals buried in the archives.
Out there in space there is no air.
Cindy Zhi NY-BD-CC
When NASA first started planning the Kepler mission, no one knew if the universe held any planets outside our solar system. Thousands of exoplanets later, the search enters a new phase as Kepler retires.
The ISS sees us on Earth, but look up at night and you may see it, too.
NASA
A couple thousand satellites are orbiting Earth right now. Under the right conditions, your naked eye can spot these human-made objects in the night sky.
China’s Tiangong-1 space station is due to hit Earth, and Australia is in the crash landing zone.
Cindy Zhi/The Conversation
China’s Tiangong-1 space station is hurtling around Earth out of control and about to come crashing down. It’s just one of thousands of pieces of space junk left orbiting our planet.