Earth's thin atmosphere stands out against the blackness of space in this photo shared on Aug. 31, 2015, by NASA astronaut Scott Kelly on board the International Space Station.
If one analysis of hacked data from Ashley Madison is true, the affair-seeker website promoted a lot of talk, but little action.
Only about 5% of the universe consists of ordinary matter such as protons and electrons, with the rest being filled with mysterious substances known as dark matter and dark energy. So far, scientists have failed to detect ...
Snaring a dark energy 'chameleon': Is dark energy hiding from us? Matter may be screening it from our view
If dark energy is hiding in our midst in the form of hypothetical particles called "chameleons," Holger Müller and his team at the University of California, Berkeley, plan to flush them out.
Results of the XENON100 experiment are a bright spot in the search for dark matter. The team of international scientists involved in the project demonstrated the sensitivity of their detector and recorded results that challenge ...
Physicists suggest a new way to look for dark matter: They believe that dark matter particles annihilate into so-called dark radiation when they collide. If true, then we should be able to detect the signals from this radiation.
A longstanding mystery about the tiny stars that let loose powerful explosions known as Type Ia supernovae might finally be solved.
A hacker group made good on its pledge to release user data stolen from the affair website Ashley Madison, creating a potential privacy and security debacle for millions.
Scientists on the Dark Energy Survey, using one of the world's most powerful digital cameras, have discovered eight more faint celestial objects hovering near our Milky Way galaxy. Signs indicate that they, like the objects ...