Feed aggregator

Aurora over Maine

APOD - 16 hours 31 sec ago

It has been a good week for auroras. It has been a good week for auroras.


Milky Way above Atacama Salt Lagoon

APOD - 16 hours 31 sec ago

Galaxies, stars, and a serene reflecting pool combine to create this memorable land and skyscape. Galaxies, stars, and a serene reflecting pool combine to create this memorable land and skyscape.


62 Kilometers above Comet Churyumov Gerasimenko

APOD - 16 hours 31 sec ago

Spacecraft Rosetta continues to approach, circle, and map Comet Churyumov-Gerasimenko. Spacecraft Rosetta continues to approach, circle, and map Comet Churyumov-Gerasimenko.


M27: The Dumbbell Nebula

APOD - 16 hours 31 sec ago

The first hint of what will become of our The first hint of what will become of our


Median Mashup: Hubble's Top 100

APOD - 16 hours 31 sec ago

Now, as you sip your Now, as you sip your


Supernova Remnant Puppis A

APOD - 16 hours 31 sec ago

Supernova Remnant Puppis A Supernova Remnant Puppis A


Cocoon Nebula Wide Field

APOD - 16 hours 31 sec ago

Cocoon Nebula Wide Field Cocoon Nebula Wide Field


Space: The final frontier ... open to the public

Science Daily - Wed, 09/17/2014 - 17:32
Historically, spaceflight has been reserved for the very healthy. Astronauts are selected for their ability to meet the highest physical standards to prepare them for any unknown challenges. However, with the advent of commercial spaceflight, average people can now fly. The aerospace medicine community has had little information about what medical conditions should be considered particularly risky in the spaceflight environment, as most medical conditions have never been studied for risk in space -- until now.

Smallest known galaxy with a supermassive black hole

Science Daily - Wed, 09/17/2014 - 13:16
Astronomers have discovered that an ultracompact dwarf galaxy harbors a supermassive black hole – the smallest galaxy known to contain such a massive light-sucking object. The finding suggests huge black holes may be more common than previously believed.

NASA chooses American companies to transport U.S. astronauts to International Space Station

Science Daily - Wed, 09/17/2014 - 08:46
U.S. astronauts once again will travel to and from the International Space Station from the United States on American spacecraft under groundbreaking contracts NASA announced Tuesday. The agency unveiled its selection of Boeing and SpaceX to transport U.S. crews to and from the space station using their CST-100 and Crew Dragon spacecraft, respectively, with a goal of ending the nation's sole reliance on Russia in 2017.

Violent origins of disc galaxies: Why Milky Way-like galaxies are so common in the universe

Science Daily - Wed, 09/17/2014 - 07:31
For decades scientists have believed that galaxy mergers usually result in the formation of elliptical galaxies. Now, for the the first time, researchers have found direct evidence that merging galaxies can instead form disc galaxies, and that this outcome is in fact quite common. This surprising result could explain why there are so many spiral galaxies like the Milky Way in the Universe.

Zodiacal Light before Dawn

APOD - Wed, 09/17/2014 - 06:42

You might not guess it, but sunrise was still hours away when You might not guess it, but sunrise was still hours away when


Rosetta's comet landing site selected

Star Stuff - Tue, 09/16/2014 - 22:00
Rosetta mission managers choose a site for the historic first landing on the comet. Also; NASA's Curiosity rover arrives at its final destination at the Martian peak Mount Sharp, and a new Australian telecommunications satellite launches into orbit.

219 million stars: Astronomers release most detailed catalog ever made of the visible Milky Way

Science Daily - Tue, 09/16/2014 - 08:48
A new catalog of the visible part of the northern part of our home Galaxy, the Milky Way, includes no fewer than 219 million stars. From dark sky sites on Earth, the Milky Way appears as a glowing band stretching across the sky. To astronomers, it is the disk of our own galaxy, a system stretching across 100,000 light-years, seen edge-on from our vantage point orbiting the Sun. The disk contains the majority of the stars in the galaxy, including the Sun, and the densest concentrations of dust and gas.

Laniakea: Our Home Supercluster of Galaxies

APOD - Tue, 09/16/2014 - 02:42

It is not only one of the largest structures known -- it is our home. It is not only one of the largest structures known -- it is our home.


An Aurora Cupcake with a Milky Way Topping

APOD - Mon, 09/15/2014 - 05:42

This sky looked delicious. This sky looked delicious.


Super Moon vs Micro Moon

APOD - Sun, 09/14/2014 - 01:42

What is so super about tomorrow's supermoon? What is so super about tomorrow's supermoon?


Full Moon Silhouettes

APOD - Sat, 09/13/2014 - 04:42

Have you ever watched the Moon rise? Have you ever watched the Moon rise?


Clues to how giant elliptical galaxies move

Science Daily - Fri, 09/12/2014 - 08:53
New clues to how giant elliptical galaxies move have been discovered by an international team of astronomers. Elliptical galaxies have long been considered as essentially being made up of old stars that move randomly within them, like a swarm of bees. This has been challenged in many instances in the past ten-twenty years, but giant elliptical galaxies are still considered as a nearly round and non-rotating group of old stars by astronomers.

Moonbow Beach

APOD - Fri, 09/12/2014 - 00:42

Moonbow Beach Moonbow Beach


Syndicate content