WATER FOUND ON MOON

On Oct 9, 2009 Nasa’s LCROSS, or Lunar Crater Observing and Sensing Satellite struck water in a cold, permanently dark crater at the south pole of the moon. The LCROSS was a nasa probe designed to impact the moon, while a small satellite followed behind it measuring the chemical makeup of the material that was ejected. After a year of data analysis, Nasa reported that it’s mission found water ice in the floor of the permanently-shadowed crater it’s probe impacted. Later data from three different spacecraft indicate a thin film of water coats the surface of the soil in at least some areas.

Mira A's tail

In 2007, the Galaxy Evolution Explorer, or GALEX scanned Mira A, an older red giant star, as part of an ongoing surgery to scan the entire sky in ultraviolet light. Astronomers were shocked to find a 13 light year long, comet-like tail trailing behind Mira A. The star is plowing through the Universe unusually fast, at about 291,000 miles an hour. Until this discovery, it was thought that stars could not have tails.

 

 

 

Giant magnetic space bubbles

Nasa’s two Voyager probes have found magnetic bubbles in the region of the solar system known as the Heliosheath, 9 billion miles away from Earth. In the 1950s, scientist believed this region of space was relatively smooth. But when Voyager 1 entered the Heliosheath in 2007, and Voyager 2 got there in 2008 they detected a turbulence that is generated by the Sun’s magnetic field, that creates magnetic bubbles up to 100 million miles wide.

New moons orbiting pluto

 

Pluto now has four known moons. Charon was discovered in 1978, and is the largest of Pluto’s moons. It is 648 miles across, causing many people to consider it and Pluto a “double dwarf planet”. Nothing new was learned of icy bodies orbiting Pluto until 2005, when the Hubble Space Telescope discovered Nix and Hydra. They are both in the range of 20 – 70 miles in diameter. The most amazing discovery regarding Pluto’s moons came in 2011, when Hubble photographed what is temporarily being called P4. It is in the range of 8 – 21 miles in diameter. It is an amazing feat, for Hubble to photograph something that tiny, that is over 3 billion miles away from us.