The mystery of dark energy

Dark energy is believed to account for 68 percent of all energy in the known universe, and is responsible for its constant expansion. The particle, which is associated with dark energy has long been predicted, but no one has yet udalo detect it.

All forms of energy that are known to have a particle physics associated with it. 

NASA shares the latest pictures of Dione

Automatic interplanetary station, NASA Cassini gave the highest quality pictures of one of the largest of Saturn's moons Dione, which were made on August 17 during the closest approach to the celestial body.

The space agency also reported the sad news, these are the latest images of Dione, which is connected with the approaching end of the research mission of closest approach to the satellite during the flight of August 17, 2015 amounted to 475 km.

China is making one of the largest radio telescopes in the world

China next year, intends to complete the construction of the five hundred meter Aperture Spherical Telescope (FAST) - one of the world's largest radio telescopes. As the name implies, the diameter of the telescope is 500 meters. Thus, according to this indicator FAST significantly surpass radio telescope at the Arecibo Observatory, which has a mirror diameter of about 305 meters of the reflector is currently one of the largest in the world (using one of the aperture). 

"Space": running on the waves of gravity

A hundred years ago, an inquisitive mind of a genius, Albert Einstein assumed that the universe is filled with gravitational waves, and even described their properties. To this day, scientists continue to look for them. The "Space" invites viewers to witness these searches in Hanover, Germany.

Thus, all objects of the universe - colliding black holes, collapsing stars, planets - create ripples in the fabric of space-time, slightly distorting, deforming it. This "ripple" is the gravitational waves. 

Top 7 striking facts about time

1. Once a year on Earth lasted 486 days, it was about 800 million years ago, before the birth of ancient life in the era of large-scale glaciation of the Earth. Hundreds of millions of years later, in the era of the dinosaurs, the year was reduced to 370 days. He is now, as you know, is 365 days. What is happening? The facts that the Earth rotates more slowly, because it "slows down" lunar gravity.

What are the limits of human vision?

From observations of distant galaxies light years from us to the perception of invisible colors, Adam Hedheyzi on BBC explains why your eyes can do incredible things. Take a look around. What do you see? All these colors, the walls, the windows, everything seems obvious, as it should be here. The idea that we all see it because the particles of light - photons - that bounce off of objects and fall into human vision, it seems incredible.

What happens to a person without a Spacesuit in Space

Imagine you were thrown out of the space station airlock without a spacesuit. You can panic and desperately trying to escape. How much time do you have to find the source of air and atmospheric pressure needed? Spoiler: very little. But more than you think.