Top-down artist depiction of a tiny black hole and a pileup of gas and matter swirling toward the center.
The little-known Rossi X-ray Timing Explorer spacecraft was like a Geiger counter for the universe, listening to black holes and zombie stars.
Neutron star merger.
Credit: NASA's Goddard Space Flight Center/CI Lab
Astronomers are getting ready to say good bye to the radio emission from a neutron star merger – one of the most energetic events in the universe – that was detected last year.
All the proofs in the world won't change a convinced flat earther's mind.
The Vela pulsar makes about 11 complete rotations every second, it also has a glitch.
X-ray: NASA/CXC/Univ of Toronto/M.Durant et al; Optical: DSS/Davide De Martin
Pulsars are rapidly rotating neutron stars and some of them are know to have a "glitch", and astronomers have captured one as it hapened.
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 as Kepler retires.
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.
Understanding the past requires knowledge that goes beyond modern science.
Harvepino / shutterstock
'Ridge A' sits at the peak of the Antarctic ice sheet and has exceptionally cold, dry, thin and dark skies.
An artist’s rendering of how the first stars in the universe may have looked.
N.R. Fuller, National Science Foundation
Signals from the first stars to form in the universe have been picked up by a table-sized detector in a west Australian desert. The find also hints at an early interaction with dark matter.
Through abstraction, the underlying essence of a mathematical concept can be extracted.
So many stars above an Australian cemetery.
Flickr/Indigo Skies Photography
On a clear night you can see thousands of stars in the night sky, and there are billions more in our galaxy alone. But are the official star names really up for sale?
An artist’s impression of a supermassive black hole at the centre of a galaxy.
Black holes may come in many sizes, but there's still a gap in the middle. The hunt is on to solve the mystery of where are the intermediate size black holes.
An artist’s impression of the predicted merger between our Milky Way (right) and the neighboring Andromeda galaxy (left). So which galaxy will dominate?
NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger
Bigger galaxies tend to dominate the smaller, when the two collide. But the pending battle between our Milky Way and the Andromeda galaxy might be a much fairer fight than we previously thought.
time of moonrise and moonset and the shape of the Moon change throughout the month.
Marcella Cheng/The Conversation
When and where you see the Moon in the daytime depends on what phase it is in.
Rocket Lab successfully launched its Electron rocket from the company’s complex on the Māhia Peninsula in New Zealand.
There are plenty of astronomical things to watch out for this year beyond this week's lunar eclipse, including new Moon landings and a space station falling back to Earth.
Blood moon on April 15, 2014.
Robert Jay GaBany/wikipedia,
Studying lunar eclipse could help us work out what's happening on exoplanets.
Changing colours of the Moon during a total lunar eclipse, Mt Buffalo National Park, June 16, 2011.
There is plenty of excitement about the lunar eclipse this week, but don't believe all you read and hear about this wonderful astronomical event.
Timeline of the universe.
From blindingly bright and burning hot to pleasantly 'candle-lit', the first years of the universe would have been spectacular to see.
As long as clouds don’t get in the way, the view should be spectacular.
A bunch of uncommon things all happening at the same time mean this full moon will have some special attributes.
The Small Magellanic Cloud galaxy here seen in infrared light, but it looks different when viewed at other wavelengths.
The galaxies, stars and planets in our universe can look very different when you view them through equipment that sees beyond the visible light our eyes can see.