April 26, 2015

Nearby Dust Clouds in the Milky Way

Dust Clouds in Milky Way

The yearly ritual of spring cleaning clears a house of dust as well as dust "bunnies", those pesky dust balls that frolic under beds and behind furniture. NASA/ESA Hubble Space Telescope has photographed similar dense knots of dust and gas in our Milky Way Galaxy. This cosmic dust, however, is not a nuisance. It is a concentration of elements that are responsible for the formation of stars in our galaxy and throughout the universe.

These opaque, dark knots of gas and dust are called Bok globules, and they are absorbing light in the center of the nearby emission nebula and star-forming region, NGC 281.

Image Credit: NASA, ESA, and The Hubble Heritage Team STScI/AURA
Explanation from: http://www.spacetelescope.org/images/opo0613a/

April 24, 2015

Artist’s impression of the exoplanet 51 Pegasi b

51 Pegasi b

This artist’s view shows the hot Jupiter exoplanet 51 Pegasi b, sometimes referred to as Bellerophon, which orbits a star about 50 light-years from Earth in the northern constellation of Pegasus (The Winged Horse). This was the first exoplanet around a normal star to be found in 1995. Twenty years later this object was also the first exoplanet to be be directly detected spectroscopically in visible light.

Image Credit: ESO/M. Kornmesser/Nick Risinger
Explanation from: http://www.eso.org/public/images/eso1517a/