Astronomy Photo Of The Day: 5/30/15 — Vividly Blue NGC 7822

Two moons of Uranus: Titania and Oberon. Both moons were discovered by William Herschel in 1787.

Credit: NASA/JPL

What Happened to Mars?

Billions of years ago, Mars was a very different world. Liquid water flowed in long rivers that emptied into lakes and shallow seas. A thick atmosphere blanketed the planet and kept it warm.

Today, Mars is bitter cold. The Red Planet’s thin and wispy atmosphere provides scant cover for the surface below.

Our MAVEN Mission

The Mars Atmosphere and Volatile EvolutioN (MAVEN) mission is part of our Mars Scout program. This spacecraft launched in November 2013, and is exploring the Red Planet’s upper atmosphere, ionosphere and interactions with the sun and solar wind.

The purpose of the MAVEN mission is to determine the state of the upper atmosphere of Mars, the processes that control it and the overall atmospheric loss that is currently occurring. Specifically, MAVEN is exploring the processes through which the top of the Martian atmosphere can be lost to space. Scientists think that this loss could be important in explaining the changes in the climate of Mars that have occurred over the last four billion years.

New Findings

Today, Nov. 5, we will share new details of key science findings from our ongoing exploration of Mars during a news briefing at 2 p.m. EDT. This event will be broadcast live on NASA Television. Have questions? Use #askNASA during the briefing.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com 

All here… Sorry, Pluto, you don’t belong here

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The Cartwheel Galaxy

Image credit: NASA/ESA/Hubble

This photograph of Neptune was reconstructed from two images taken by Voyager 2’s narrow-angle camera, through the green and clear filters. At the north (top) is the Great Dark Spot, accompanied by bright, white clouds that undergo rapid changes in appearance.

Credit: NASA

The planet Saturn, observed by the Hubble Space Telescope.

DAT MILKY WAY

Bright stars of Sagittarius and the center of our Milky Way Galaxy lie just off the wing of a Boeing 747

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Five-dimensional black hole could 'break' general relativity

Cambridge UK (SPX) Feb 19, 2016 Researchers have shown how a bizarrely shaped black hole could cause Einstein’s general theory of relativity, a foundation of modern physics, to break down. However, such an object could only exist in a universe with five or more dimensions. The researchers, from the University of Cambridge and Queen Mary University of London, have successfully simulated a black hole shaped like a very thi Full article

#BlackHistoryMonth #tbt: Being the first African American woman to travel to space is one of Mae Jemison’s many accomplishments. A dancer, Peace Corps doctor, public speaker and astronaut, Mae went to college at age 16, holds 9 honorary doctorates and has founded many STEM-related programs for students.