女生小视频

Space

Humans could bring microbes into space

Space

Space germs: How can we avoid contaminating other worlds?

Headlines about alien flu from outer space exaggerate the risk of extraterrestrial microbes but we still need to be careful about taking our own germs off-planet, says astrophysicist Erika Nesvold

News
NASA's group that studies UAPs is holding its first public meeting

Space

NASA鈥檚 UFO team discusses its findings publicly for the first time

News

Space

We are finally closing in on the cosmic origins of the 鈥淥MG particle鈥�

Features

Space

Why sending messages to extraterrestrials is controversial

News
Milky Way. Night sky and silhouette of a standing man

Space

Questions I dread: How did the universe begin, and what is space-time?

News
Supermassive black hole. Elements of this image furnished by NASA.; Shutterstock ID 1756053335; purchase_order: -; job: -; client: -; other: -

Space

Lab imitations of the unobservable cosmos can be genuinely insightful

News
A dense collection of stars covers the view. Towards the centre the stars become even more dense in a circular region, and also more blue. Around the edges there are some redder foreground stars, and many small stars in the background.

Physics

Why darkness between stars reveals more about the universe than light

News
NEW CLOUDS ABOVE US The modern world relies on satellites for its communications and commerce. While mostly invisible to us as we go about out daily lives, our entire modern way of living ? both socially and professionally ? is intimately linked with the orbital space around the Earth. How we treat this extraterrestrial environment will determine how much we can rely on it in the future. ?In this view of Greenwich, London, you?ve got examples of what?s in space. I photographed about 300 artefacts ranging from satellites to rocket bodies, satellite parts, solar panels, all the way down to the screws and a glove to show what?s up there. The photography was done over a one year period, across North America, Europe and the UK. I wanted to show this from a human perspective ? from the ground looking up. I chose Greenwich because of its history of astronomy and because from there you can see the financial district of London to highlight the modern world?s connection to the satellites that circle Earth.? Max Alexander

Comment

Space debris problem highlighted in new series of photographs

Regulars

Space

Alien messages responding to NASA signals could reach us by 2029

News
HA6GE7 departmentofenergy 8056998030 The Daya Bay Antineutrino Detector

Space

What was the universe’s first second like? These particles can tell us

If we could detect them, cosmic neutrinos would paint a picture of the universe in the instant after it began. Physicist Martin Bauer has come up with a plan to do just that

Features

Space

Your essential guide to the many breathtaking wonders of the universe

Features

Physics

How are the atoms that form us forged across the universe?

News

Space

How to understand wormholes and their weird quantum effects

News

Space

A stargazer’s guide to managing light pollution

Regulars