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Jonathan O'Callaghan

Rock Formation

New Evidence Points to the Moon Once Being Part of Earth

Gases trapped in lunar meteorites hint that the moon was formed out of material displaced from Earth after a planetary collision.
Double Trouble

Behold the Weird Physics of Double-Impact Asteroids

Mars is littered with craters made by binary asteroids. These collisions are as intriguing as they are powerful.
Star Trek

Need to Test a Space Suit? Head to Iceland

The country’s unearthly landscapes have caught the attention of scientists planning for future missions to Mars and the moon.

This is How You Build a Telescope to Hunt For Dark Energy

The Euclid telescope will soon start work studying two billion galaxies. It’s a true technological marvel.

Astronauts used to be daredevils. Disney’s The Right Stuff shows how they changed

New Disney+ show The Right Stuff looks back at the astronaut selection process for the Mercury missions – when astronauts were brash, bold daredevils. Today, spacefarers need a very different skillset

This is what life on Venus might look like – and how we’ll find it

The discovery of phosphine on Venus hints at life in its clouds, but finding out won’t be easy

SpaceX’s first-ever human flight is Elon Musk’s biggest moment yet

At 20:22 BST on Saturday May 30, SpaceX will launch two Nasa astronauts to the International Space Station – the first crewed ISS flight by a private company

The wild science behind Starship, Elon Musk’s planet-hopping rocket

SpaceX is building a rocket that – it hopes – can be launched and land 1,000 times a year. But to make it a reality, Musk will have to solve some big engineering conundrums

The wild physics of Elon Musk's methane-guzzling super-rocket

To get humans to Mars, SpaceX is building the mighty Starship spacecraft, powered by the Raptor engine - one of the first to be powered by methane and designed to be reused 1,000 times

Elon Musk just ignited the race to build the space internet

SpaceX's Starlink launch is the start of a race to bring the entire Earth’s population online, but who will actually use the space internet?

This is what went down when a meteorite hit the roof of a house

The San Carlos Meteorite is a fascinating example of a rare “damaging fall”. And other recent events highlight our need to keep a closer eye on incoming debris

SpaceX just launched its first human spacecraft. Now the real fun begins

Crew Dragon’s first test flight could herald an exciting future of commercial human spaceflight

Chinese officials circle as a second CRISPR pregnancy is confirmed

He Jiankui faces severe punishment for his actions, but questions remain as to where the CRISPR baby investigation will go next

2019 is the year that space tourism finally becomes a reality. No, really

We’ve had to wait a long time, but there’s every reason to be excited about space tourism this year

We've found a mysterious energy burst that's repeating and is more powerful than millions of Suns

A new telescope may hold the key to finding out where enigmatic fast radio bursts are coming from in the Universe

Nasa's New Horizons is about to make an amazing deep space flyby

A billion miles from Pluto, New Horizons is all set for its close encounter with one of the most mysterious objects in the solar system

Science is racing to stop another CRISPR baby from being born

As the world grapples with the first gene-edited babies, questions are being raised about where we go next.

Traces of dark matter might be lurking in ancient rocks on Earth

The hunt for dark matter particles to date has mostly focused on real-time detection. But certain minerals could contain historical records of these particles stretching back millions of years

The science of Arrival: what the film got right (and wrong)

In the film, Louise Banks (Amy Adams), is tasked with deciphering the language of the mysterious heptapods who have arrived on Earth

Where are all the aliens? WIRED explains the Fermi Paradox

WIRED explains the possible solutions to the Fermi Paradox