How close can a potentially dangerous asteroid get before it’s detected?
We're finding more near-Earth objects all the time, and the challenge is to identify those that could potentially hit us. So how come we missed one that caused a huge blast in December?
An artist’s impression of an asteroid about to hit Earth: it’s what happens next that could have helped wipe out the dinosaurs 66 million years ago.
More evidence that the asteroid hit on Earth that marked the end of the dinosaurs could have triggered a deadly increase in volcanic activity.
The 2018 Geminids meteor shower recorded over two very cold hours on the slope of Mount Lütispitz, Switzerland.
Moonlight will spoil some of the big meteor showers this year, but still plenty of others to see. So here's your guide on when and where to look to catch nature's fireworks.
A spectacular display.
Expect a spectacular display of 120 or more meteors per hour – some of them brightly coloured.
Image of Bennu from a distance of around 50 miles (80 km).
NASA/Goddard/University of Arizona
Osiris-REx will spend the next year looking for a good place to land on asteroid Bennu before it collects grains and brings them home.
An ice-sheet in Greenland’s Inglefield Land is hiding the Hiawatha crater.
Natural History Museum of Denmark, Cryospheric Sciences Lab, NASA Goddard Space Flight Center, Greenbelt, MD, USA
Meteorite impacts have fundamentally shaped the history of our planet.
A telescope pointed at the skies above Senegal to capture the stellar occultation.
François Colas, Observatoire de Paris, Insititut de Mécanique Celeste et de Calcul des Ephémérides
Senegal has made great strides in astronomy and planetary sciences in recent years.
Space mining has the potential to provide a greater supply of resources either for being exploited locally for construction or being sent back to earth.
Fragments of the asteroid 2018 LA scattered over a wide area in Botswana’s Central Kalahari Game Reserve.
Each meteorite is a piece of the puzzle to understanding our solar system.
Romolo Tavani / shutterstock
We have long wondered why Earth has stayed habitable enough for life to evolve over billions of years.
Artist’s impression of the interstellar object.
A world expert weighs in on the continuing debate about ‘Oumuamua.
Artist depiction of an asteroid on a collision course with Earth.
An asteroid on a collision course with Earth is inevitable. Astronomer Michael Lund explains how a new telescope under construction in Chile will become a vital tool for detecting objects that could devastate our planet.
Nearly 50 years since the first man walked on the moon, our morals are still stranded on Earth.
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.
Artist’s impression of a solar-powered satellite on a mining mission.
The first step to mining an asteroid is finding a suitable candidate. Scientists estimate there should be some ten nearby targets.
Gosses Bluff impact crater in the Northern Territory.
NASA’s Earth Observatory
Large asteroids have hit Australia over many millions of years and the evidence is in the landscape, if you know where to look.
Small asteroids can be hard to spot. But what kind of threat do they pose to the Earth?
Artist’s illustration of planet formation.
Image credit: NASA / Lynette Cook
'Oumuamua is likely a relatively young interstellar visitor from a binary star system.
The 2017 Geminids as seen from Ecuador, against the backdrop of the splendid Milky Way (centre) and the Large Magellanic Cloud (right).
Your guide to some of the best meteor showers for 2018. Where to look and when in both the northern and southern skies to catch nature's fireworks.
New research reveals the true nature of 'Oumuamua, the cigar-shaped rock that recently visited Earth's solar system.