A US Delta IV rocket lifts off.
United Launch Alliance/AFSPC
A new name on a few military badges doesn't imply an escalating arms race.
The US wants a ‘Space Force’ to be the sixth branch of the US military.
Those who speak of the inevitability of war in space will fuel a race to the bottom, and see even more energy towards an arms race in space.
The blood moon myths are many and varied, but, at the end of the day, it's just an eclipse.
Jeff Bezos plans to charge US$200,000-300,000 for a trip to outer space. And it's going to cost him an astronomical amount of money.
Nobody knows for sure where black holes lead to.
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?
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.
Trunp's new policy could lead to the militarisation of outer space and the beginning of a new space arms race.
In fact, some things are slowing the Earth down or could change its spinning in the future.
To answer this tricky question, we have to look back in time to when the Earth was born, 4.5 billion years ago.
Should schools be charged large sums to teach students about space science?
Will new communications licensing costs make small satellites so expensive that they can't be used for student education?
About a century ago, we didn’t even know that galaxies existed.
Mai Lam/The Conversation NY-BD-CC
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.
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.
It would be a heavy lift, but revising the Iran nuclear deal would have some significant upsides, according to scholars at the University of Maryland.
A promise of new jobs from Australia’s new space agency.
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.
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
Out there in space there is no air. If you took your helmet off, all the air you need to breathe would whoosh out.
TESS will soon be our eye in the sky.
NASA's Goddard Space Flight Center
How long before we find a planet just like our own?
Imagined view from Kepler-10b, a planet that orbits one of the 150,000 stars that the Kepler spacecraft is monitoring.
NASA/Kepler Mission/Dana Berry
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.
The ISS sees us on Earth, but look up at night and you may see it, too.
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.