Jupiter’s Moon, Callisto.

NASA astronaut films lightning from ISS

Astronaut Reid Wiseman posted a Vine from the International Space Station today showing lightning over Houston. Tornado warnings were issued in the Houston area earlier this afternoon but have since expired.

PLUTO (bottom image: lower right) AND ITS MOON, CHARON (top image, bottom image: upper left)

enhanced color images via NEW HORIZONS

Beware of the Big, Bad Wolf

Visible within the center of the Crescent nebula is what’s classified as a Wolf-Rayet star. This star is a staggering 250,000 times brighter than the Sun, 15 times more massive, and 3.3 times larger. Its surface temperature is nearly 70,000° C/ 125,000° F. At just 4.7 million years old, it is already toward the end of it’s life and is shedding its outer envelope, ejecting the equivalent of the Sun’s mass every 10,000 years. Within a few hundred thousand years, it is expected to explode as a supernova.   (Image Credit: Michael Miller, Jimmy Walker)

Starburst galaxy NGC 4449 in the M94 galaxy group 13 million light-years away (Hubble image)

Charting the slow death of the Universe

Paris (SPX) Aug 12, 2015 The study, which is part of the Galaxy And Mass Assembly (GAMA) project, the largest multi-wavelength survey ever put together, involved many of the world’s most powerful telescopes [1]. “We used as many space and ground-based telescopes as we could get our hands on to measure the energy output of over 200 000 galaxies across as broad a wavelength range as possible,” says Simon Driver ICRA Full article

The original nine. js

Jupiter’s south pole, taken by Cassini

Cygnus entering the atmosphere, photographed by Alexander Gerst on the ISS.

NASA’s planet-hunting Kepler Telescope has spotted the first roughly Earth-sized world orbiting in the “Goldilocks zone” of another star – offering perhaps the best bet so far for life elsewhere in the universe.

A year on Kepler 452b, which is about 1,400 light years from us in the constellation Cygnus, is 385 days, meaning its orbit is just a bit farther away from its star than the Earth is from the sun. That places it squarely within what planetary scientists call the habitable zone, or “Goldilocks” zone — not too cold and not too hot.

“In my mind, this is the closest planet indeed to Earth,” Jon Jenkins, Kepler data analysis lead at NASA’s Ames Research Center in Moffett Field, Calif, said at a media briefing. “The star is a little bit older and a little bit bigger and brighter, so it’s good that it’s a bit farther from its star.”

Kepler Telescope Introduces Earth To A Very Distant Cousin

Image: Artist’s concept compares Earth (left) to the new planet, called Kepler-452b, which is about 60 percent larger in diameter. Courtesy of NASA/JPL-Caltech/T. Pyle