Our Sun will likely go out quietly – but not all such stars do. A new radio detection of a supernova can help us better understand these cosmic cataclysms.
New research shows that the destructive merging of a star and a planet expels huge amounts of gas, as shown in this artist’s impression.
K. Miller/R. Hurt (Caltech/IPAC)
Stars begin to expand when they run out of fuel and can become thousands of times larger, consuming any planets in the way. For the first time, astronomers have witnessed one such event.
Artificial intelligence tools are making waves in almost every aspect of life, and astronomy is no different. An astronomer explains the history and future of AI in understanding the universe.
For decades physicists have argued over the nature of the elusive dark matter that pervades the Universe. A clever new study uses gravitational lensing to bring new evidence to the debate.
The far side of the Moon is an attractive place to carry out astronomy.
NASA / Ernie Wright
An asteroid ‘the size of 33 armadillos’ might be a flight of fancy, but real astronomers measure celestial objects with units that are just as strange.
‘Earthrise,’ a photo of the Earth taken by Apollo 8 astronaut Bill Anders, Dec. 4, 1968.
NASA/Bill Anders via Wikipedia
The Jupiter Icy Moons Explorer and Europa Clipper missions will arrive at Jupiter in the 2030s and provide researchers with unprecedented access to the icy moons orbiting the gas giant.
Elizabeth Campbell operating the Floyd Telescope, 1922 total solar eclipse.
State Library Western Australia 4131B/3/8, enhanced detail
History might give you the impression astronomical discoveries were only done by men. But women were participating in scientific expeditions of eclipses too, even though it wasn’t easy.
A diagram of a lunar eclipse from De Sphaera Mundi by Johannes de Sacrobosco, c. 1240 AD.
New York Public Library
Medieval monks recorded hundreds of lunar eclipses. Centuries later, their descriptions are helping scientists unravel the role of volcanoes in historical climate change.
An artist’s impression of the 30,000 or so space debris orbiting around the Earth.
Flickr
How might the space industry reduce its ecological footprint and better manage the debris it leaves in its wake?
SAURON: radio intensity (purple) from MeerKAT overlaid on an optical image from the Dark Energy Survey.
Michelle Lochner / The Dark Energy Survey Collaboration 2005
A US-led coalition and China are both planning to establish bases on the Moon. How the two nations will navigate actions on the Moon and how other countries will be involved is still unclear.
Tens of thousands of satellites orbiting Earth will hamper astronomers’ efforts to study the Universe and spot dangerous asteroids, as well as brightening the sky and hiding stars from the rest of us.