Tagged: universe

What if Einstein is wrong?

We’ll have to recalibrate everything — the age of the universe, the age of stars, the distance to the stars, the basic structure of modern electronics, the GPS, nuclear weapons — all of that would have to be recalibrated and rethought …

M74: The Perfect Spiral

If not perfect, then this spiral galaxy is at least one of the most photogenic. An island universe of about 100 billion stars, 32 million light-years away toward the constellation Pisces, M74 presentsa gorgeous face-on view. Classified as an Sc galaxy, the grand design of M74’s graceful spiral arms are traced by bright blue star clusters and dark cosmic dust lanes.

Space Colony Art from the 1970s (16 pictures)

Three space colony summer studies were conducted at NASA Ames in the 1970s. These artistic renderings conducted with scientists from NASA’s Ames Research Center in 1975 at Stanford University, they have artificial gravity, small mountains, rivers, trees, designed for populations from 10,000 to one million!

Io’s surface: under construction

Like the downtown area of your favorite city and any self-respecting web site … Io’s surface is constantly under construction. This moon of Jupiter holds the distinction of being the Solar System’s most volcanically active body — its bizarre looking surface continuously formed and reformed by lava flows.

Departing Earth from Messenger

What it would look like to leave planet Earth? Such an event was recorded visually in great detail by the MESSENGER spacecraft as it swung back past the Earth, eight years ago, on its way in toward the planet Mercury. Earth can be seen rotating in this time-lapse video, as it recedes into the distance. The sunlit half of Earth is so bright that background stars are not visible. The robotic MESSENGER spacecraft is now in orbit around Mercury and has recently concluded the first complete map of the surface. On occasion, MESSENGER has continued to peer back at its home world. MESSENGER is one of the few things created on the Earth that has left and will never return — at the end of its mission MESSENGER will be crashed into Mercury’s surface.