My kids asked me if there was enough water in the universe to quench the Sun.  I voted yes, but of course science isn't about voting, but about verifiable facts.  So now the explanation.

The Sun has a mass of around a third of a million Earths.  Stealing a figure from, the mass of water on the Earth is 1/4400 the total mass.  We'll say we need enough water to completely douse every atom in that fusion-burning puppy we call Sol, so we'll need... 4400 * 0.3 * a million Earths. 

This works out neatly to just over a billion Earths, to get enough water to douse the Sun.

The Big Bang is believed to have created a flood of gravitational waves that still fill the universe with information about its existence immediately after the Big Bang. These waves would be observed as the "stochastic background," analogous to a superposition of many waves of different sizes and directions on the surface of a pond. The amplitude of this background is directly related to the parameters that govern the behavior of the universe during the first minute after the Big Bang.

RCW 38 is a dense star cluster about 5500 light years away in the direction of the constellation Vela (the Sails). Like the Orion Nebula Cluster, RCW 38 is an embedded cluster, in that  clouds of dust and gas still envelop its stars.

Inside RCW 38, young stars bombard fledgling suns and planets with powerful winds and blazing light and some short-lived, massive stars explode as supernovae, whick sometimes cooks away the matter that would otherwise form new solar systems.

Did our own solar system form  in that sort of hellish environment?
The mystery of the solar corona may be resolved.  ScientificBlogging has covered this, as did, Space Fellowship, and other sites.  Two of them couldn't resist the same money quote, too:
"Why is the sun's corona so darned hot?" said study member

James Klimchuk of NASA's Goddard Space Flight Center in Greenbelt, MD.
Why is this useful?
Our society is saturated with GPS, or Global Navigation Satellite System (GNSS), applications. GPS is the first GNSS and it is operated by US Air Force. Most people are not aware of the fact that GPS was developed and is run by the military. A reduced quality signal is released for civil use. After Europe decided to build their own GNSS, called Galileo, the US Air Force decided to released an improved signal. It was and is a matter of competition.

NASA scientists have discovered glycine, a fundamental building block of life, in samples of comet Wild 2 returned by NASA's Stardust spacecraft.

"Glycine is an amino acid used by living organisms to make proteins, and this is the first time an amino acid has been found in a comet," said Dr. Jamie Elsila of NASA's Goddard Space Flight Center in Greenbelt, Md. "Our discovery supports the theory that some of life's ingredients formed in space and were delivered to Earth long ago by meteorite and comet impacts."

If you have never seen a fireball lighting up the night sky I bet you will appreciate the video below, which was taken by Ivaldo Cervini over Italian skies a few days ago. It is a Perseid meteor, which lit up at a visual magnitude of approximately -10 (for comparison, the brigthest Venus can get is -4.5, and the full moon is -12.5: -10 is roughly 200 times brighter than Venus, and a tenth of the full moon).
Planetary nebulae are gas and dust shells ejected by stars near the end of their lives - typically seen around stars comparable or smaller in size than the Sun.

The existing population of planetary nebulae is found around small stars comparable in size to our Sun but a new population discovered due to the presence of unusually strong radio sources may be the long predicted class of similar shells around heavier stars.

A team of scientists in Australia and the United States call the new class of object “Super Planetary Nebulae.” They report their work in the journal Monthly Notices of the Royal Astronomical Society.
The Gravity Recovery and Climate Experiment (GRACE) is a twin-satellite system to study in detail the Earth's gravity field. The GRACE data consist of  accelerometer, GPS, and attitude measurements from each satellite plus the inter-satellite range change measurements. NASA says GRACE time-varying gravity signals measure seasonal variations in underground aquifers.
Small bursts of heat and energy called nanoflares cause temperatures in the sun's atmosphere to reach millions of degrees, according to NASA researchers..

The sun's outer atmosphere, or corona, is made up of loops of hot gas that arch high above the surface. These loops are comprised of bundles of smaller, individual magnetic tubes or strands that can have temperatures reaching several million degrees Kelvin (K), even though the sun's surface is only 5,700 degrees K.