The orbital milestone is known as perihelion, and it marks the time when the distance between the Earth and the sun is at its smallest. The event occurs every year in early January, and in 2012 it took place on January 4 at 8 p.m. EST. On average, the Earth orbits the sun at a distance of about 93 million miles (150 million kilometers).
According to geologists rock made of a type of crystal never before seen outside a laboratory is most likely a meteorite from the early days of the solar system.Two years after identifying the Russian rock’s unusual composition, a team of scientists thinks it has nailed down its origin.
Scientists at NASA’s Goddard Space Flight Center are designing a small harpoon that would fire into and collect samples from nearby comets.
According to new syudy astronomers have found 18 new alien planets. This new discoveries increase the number of known planets orbiting massive stars by 50 percent.
Two Voyager spacecraft are providing the first glimpse of Milky Way radiation that scientists have already seen coming from other galaxies.
A satellite orbiting Mars has discovered evidence that a giant crater was once a water-filled lake. The discovery was made by the European Space Agency’s Mars Express satellite. The rare find was revealed by the presence of a delta, where flowing water has deposited sediment in a characteristic fan shape.
New study show that an icy moon around Saturn is showering rain water onto its home planet, creating a vast halo of water vapor around the ringed world. Enceladus is the only known moon in the solar system which influence the chemical composition of its parent planet.Enceladus has a frigid, icy surface but an active interior, particularly at its south pole.
With the help of NASA’s Hubble Space Telescope astronomers discovered a fourth moon orbiting the icy dwarf planet Pluto. The tiny, new satellite, temporarily designated P4, was uncovered in a Hubble survey searching for rings around the dwarf planet. The new moon is the smallest discovered around Pluto
Astronomers have discovered that one of the planets in binary star system 55 Cancri is potentially habitable.The study’s authors, Kaspar von Braun of the California Institute of Technology and his colleagues describe the properties of the binary star system 55 in the constellation of Cancer, called 55 Cancri f.