Photo
Photo

(via kensitas)

Photo
fuckyeahhubblespacetelescope:

Image courtesy ESA/NASA
The bulbous lobes of the Homunculus Nebula surround the binary star system known as Eta Carinae in a newly released picture from the Hubble Space Telescope.
Eta Carinae increased in brightness in the 19th century in an event that became known as the Great Eruption. Astronomers now know that the larger star in the system is very massive and highly unstable. The outburst in the 1800s—which released the material that formed the dumbbell-shaped nebula—was likely a precursor to the star’s imminent death in a powerful supernova.

fuckyeahhubblespacetelescope:

Image courtesy ESA/NASA

The bulbous lobes of the Homunculus Nebula surround the binary star system known as Eta Carinae in a newly released picture from the Hubble Space Telescope.

Eta Carinae increased in brightness in the 19th century in an event that became known as the Great Eruption. Astronomers now know that the larger star in the system is very massive and highly unstable. The outburst in the 1800s—which released the material that formed the dumbbell-shaped nebula—was likely a precursor to the star’s imminent death in a powerful supernova.

Photo
cordisre:


A NASA spacecraft circling Saturn has discovered a wispy oxygen atmosphere on the ringed planet’s icy moon Dione, but you wouldn’t want to live there. For one thing, you wouldn’t be able to breathe — Dione’s atmosphere is 5 trillion times less dense than the air at Earth’s surface, scientists say.
Dione’s atmosphere was detected by NASA’s Cassini spacecraft, which spotted an ultra-thin layer of oxygen ions so sparse that it is equivalent to conditions 300 miles (480 kilometers) above Earth. On Dione, there is one oxygen ion for every 2,550 cubic feet (90,000 cubic meters), but it’s still enough to qualify as an atmosphere, Cassini mission scientists announced Friday (March 2).
Dione is one of Saturn’s smaller moons and is about 698 miles (1,123 km) wide. It orbits Saturn once every 2.7 days at a distance of about 234,000 miles (377,400 km) — roughly the same as that between Earth and its moon, according to a NASA description.

cordisre:

A NASA spacecraft circling Saturn has discovered a wispy oxygen atmosphere on the ringed planet’s icy moon Dione, but you wouldn’t want to live there. For one thing, you wouldn’t be able to breathe — Dione’s atmosphere is 5 trillion times less dense than the air at Earth’s surface, scientists say.

Dione’s atmosphere was detected by NASA’s Cassini spacecraft, which spotted an ultra-thin layer of oxygen ions so sparse that it is equivalent to conditions 300 miles (480 kilometers) above Earth. On Dione, there is one oxygen ion for every 2,550 cubic feet (90,000 cubic meters), but it’s still enough to qualify as an atmosphere, Cassini mission scientists announced Friday (March 2).

Dione is one of Saturn’s smaller moons and is about 698 miles (1,123 km) wide. It orbits Saturn once every 2.7 days at a distance of about 234,000 miles (377,400 km) — roughly the same as that between Earth and its moon, according to a NASA description.

Photo

(Source: sgtfun, via hotphotography)

Photo
fuckyeahhubblespacetelescope:

Horsehead Nebula
Photo
alejandrohf:

Spacewalking Astronaut John Grunsfeld by NASA Goddard Photo and Video on Flickr.
Photo
alejandrohf:

Spacewalking Astronaut John Grunsfeld by NASA Goddard Photo and Video on Flickr.
Photo
Photo