Southern African Large Telescope.
SAAO
The astronomical community has thrived and world-class astronomical facilities have been established in South Africa.
Nearby planets can affect how one planet ‘wobbles’ on its spin axis, which contributes to seasons.
Mark Garlick/Science Photo Library via Getty Images
You might hate winter, but at least you know what to expect every year. Other planets have wobbly axes that lead to wild, unpredictable seasons.
The remains of a Type Ia supernova – a kind of exploding star used to measure distances in the universe.
NASA / CXC / U.Texas
After a decade studying thousands of supernovae, astronomers are still perplexed by the enigma that led Einstein to his ‘greatest mistake’.
NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA
The nature of dark energy remains one of the biggest puzzles in cosmology.
Astronomer Copernicus, or Conversations with God (1873)
Jan Matejko / Wikimedia Commons
A team of archaeologists discovered the remains of the 16th-century father of modern astronomy, who demonstrated that the Earth orbits the Sun.
Geoffrey Wyatt
In 2024 we will see meteor showers, Saturn disappearing behind the Moon, and – if we’re lucky – a comet bright enough to see with the naked eye.
Photograph: Nasa (Goddard Space Flight Center)
The Peregrine and Nova-C landers are due to carry out valuable science at two diverse lunar locations.
Thirdman/Pexels
A telescope can reveal so much of the night sky, including Saturn’s rings and the Moon’s craters. But choosing the right telescope is a difficult decision – here’s what you need to know.
Stargazers in Bourke, New South Wales, Australia.
David Trood/Getty Images
People have been looking up at the stars for thousands of years. Here’s where to start if you want to learn more about the night sky – from spotting easy-to-find constellations to using the best apps.
Black holes use gravity to pull matter into them.
NASA/Chandra X-ray Observatory/M.Weiss via AP
Pictures of black holes have a white outline around them when photographed, due to one of black holes’ unique and key features.
A still from footage showing Unidentified Aerial Phenomena.
US Department of Defense/US Navy
Several scientific projects are aiming to investigate UFO sightings.
The Australian Square Kilometre Array Pathfinder in the Western Australian desert.
CSIRO
Do all big black holes in very massive galaxies emit radio waves? We used the latest radio telescopes to find out.
Matter in deep space is very spread out, which makes it impossible for any sound waves to travel.
NASA, ESA, CSA, STScI
Sound needs matter to propagate, so the vast vacuum of space is not just empty − it’s silent.
LHS 3154b, a newly discovered massive planet that should be too big to exist.
The Pennsylvania State University
A newly discovered planet that should be too big to have formed around a tiny star is throwing into question what researchers know about planet formation.
Uranus is the coldest planet in the solar system.
NASA/JPL
Five of the Uranus moons might be ocean worlds − and if there’s water, there might be life.
Cristy Roberts / ASTRO 3D
With an evidence-based strategy and careful evaluation, gender parity in science is achievable.
The James Webb Space Telescope’s deep field image shows a universe full of sparkling galaxies.
NASA/STScI
The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.
The stark landscape of the Moon as viewed by the Apollo 12 astronauts on their return to Earth.
NASA / The Planetary Society
Some dark craters on the Moon are never exposed to light − ice could be hiding in these permanently shadowed regions, and India’s Chandrayaan-3 mission marked a big step toward finding it.
NASA/JPL-Caltech/Space Science Institute
Viral headlines would have you think Saturn’s rings will vanish in just 18 months. Here’s what that really means and why you don’t need to worry.
Wherever you view it from on Earth, it’s the same Moon.
Fernando Astasio Avila / Shutterstock
Despite the distances involved, people as far apart as the UK and Australia can see the Moon at the same time.