Space Debris in Earth Orbit

Amount of space debris on Earth orbit has reached a critical threshold. According to estimates of specialists National Research Council, which is the executive body of the National Academy of Sciences of the United States, now in near-Earth space there is more than 22 thousand manmade debris, movement of which can be monitored from Earth.

View More Space Debris in Earth Orbit

Ancient Star in Constellation Leo

Astronomers have discovered a star in the constellation Leo. The stars SDSS J102915+172927 has a mass smaller than that of the Sun and is probably more than 13 billion years old and has been found to have the lowest amount of elements heavier than helium (what astronomers call “metals”) of all stars yet studied.

View More Ancient Star in Constellation Leo