Surrounded by an envelope of dust, the subject of this NASA/ESA Hubble Space Telescope image is a young forming star known as HBC 1. The star is in an immature and adolescent phase of life, while most of a sun-like star's ...
Astronomy
Feb 23, 2016
0
15
NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter 'Y' is for yardangs, elongated landforms ...
Earth Sciences
Jan 1, 2016
0
7
A feather is dropped on the moon from a height of 1.40 metres. The acceleration of gravity on the moon is 1.67 m/s2. Determine the time for the feather to fall to the surface of the moon.
Social Sciences
Dec 15, 2015
2
13
New geophysical data show that fault slip during the March 2005 magnitude 8.7 (Mw) earthquake off the west coast of northern Sumatra, Indonesia (also referred to as the Simeulue-Nias earthquake), was stopped by the topography ...
Earth Sciences
Dec 11, 2015
0
35
It has long been suspected that sulfur emissions can brighten clouds. Water droplets tend to clump around particles of sulfuric acid, causing smaller droplets that form brighter, more reflective clouds.
Earth Sciences
Dec 9, 2015
0
64
OSIRIS, the scientific imaging system of ESA's Rosetta mission to comet 67P/Churyumov-Gerasimenko, shows a surface with subtle, but significant color variations.
Space Exploration
Nov 12, 2015
0
46
For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surface melting to accelerate. ...
Earth Sciences
Oct 31, 2015
13
241
This image from Sentinel-1A's radar captures part of Germany's state of Bavaria, with the city of Munich on the right and Augsburg at the centre.
Earth Sciences
Jul 24, 2015
1
3
The manipulation of light has led to many applications that have revolutionized society through communications, medicine and entertainment. Devices consuming the energy of electromagnetic radiation, such as absorbers and ...
General Physics
Jul 20, 2015
0
62
Many areas of fundamental research are interested in graphene owing to its exceptional characteristics. It is made of one layer of carbon atoms, which makes it light and sturdy, and it is an excellent thermal and electrical ...
Nanophysics
Jul 9, 2015
1
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