How high is space?

Look up, there's space. Astronomically speaking, it's right there, just outside a thin layer of atmosphere. But how far away is it? How high is space?

Cluster spacecraft detects elusive space wind (w/ Video)

A new study provides the first conclusive proof of the existence of a space wind first proposed theoretically over 20 years ago. By analysing data from the European Space Agency's Cluster spacecraft, researcher Iannis Dandouras ...

A cool discovery about the Sun's next-door twin

(Phys.org)—ESA's Herschel space observatory has detected a cool layer in the atmosphere of Alpha Centauri A, the first time this has been seen in a star beyond our own Sun. The finding is not only important for understanding ...

Japan readies space telescope to study atmosphere

Japan is to send a space telescope into orbit around the Earth to observe Venus, Mars, and Jupiter, officials said on Friday, as they look to unlock the secrets of our own planet's atmosphere.

Betelgeuse braces for a collision

(Phys.org)—Multiple arcs are revealed around Betelgeuse, the nearest red supergiant star to Earth, in this new image from ESA's Herschel space observatory. The star and its arc-shaped shields could collide with an intriguing ...

Image: Hubble's 'smoky' shells

(Phys.org)—Located in a relatively vacant region of space about 4,200 light-years away and difficult to see using an amateur telescope, the lonesome planetary nebula NGC 7354 is often overlooked. However, thanks to this ...

US joins effort to draw up space 'code of conduct'

The United States pledged Tuesday to join an EU-led effort to develop a space "code of conduct" that would set rules for orbiting spacecraft and for mitigating the growing problem of orbiting debris.

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