An Astronaut’s View of Earth Watch as colonel. - An Astronaut’s View of EarthWatch as colonel Chris Hadfield shares his experience of what it’s like to see the Earth from orbit and talks about the influence the human population has on our planet.
Andromeda Galaxy A massive spiral million light-years away, over twice the diameter of our own Milky Way, it's the largest nearby galaxy. Andromeda's population of bright young blue stars lie along its sweeping spiral arms. by Spitzer Space Telescope
"Chaotic planets" that possess wildly unpredictable orbits and climates likely circle distant stars, suggesting that some alien worlds that look habitable might actually be hostile to life for millions of years at a time, a new study reports.
The size of our planet.
Black Holes of the Circinus Galaxy
The magenta spots in this image show two black holes in the spiral galaxy called NGC or the Topsy Turvy galaxy. Both black holes belong to a class called ultraluminous X-ray sources, or ULXs.
Trio of supermassive black holes found 4 billion light years away
Helical jets from one supermassive black hole caused by a very closely orbiting companion (see blue dots). The third black hole is part of the system, but farther away and therefore emits relatively straight jets.
One of the more beautiful Milky Way photos I’ve seen. This one is taken over the two small towns of Gerlach and Empire, Nevada.
The young star cluster NGC 602 in the Small Magellanic Cloud, a satellite galaxy to the Milky Way. This picture covers a region about 200 light years across, and the galaxies seen in the background are hundreds of millions of miles further from us.