NASA

A map of the cosmic microwave background with inserts showing the Cold Spot as seen by PS1 and Planck Surveyor (Image ESA/Planck collaboration. Graphics by Gergő Kránicz)

When astronomers started studying a map of the cosmic microwave background radiation (CMB or CMBR), the residue of the earliest stages of the universe, they found what was called the Cold Spot. That’s a huge area colder than expected which could be the largest single cosmic structure never identified. According to an international team of scientists consists of a cosmic supervoid which about 1.8 billion light years across.

Images of the huge storm on Saturn taken by the Cassini space probe (Image NASA/JPL-Caltech/SSI)

In late 2010, NASA’s space probe Cassini started observing a huge storm on Saturn lasting for several months. In recent days, an article was published on the journal “Nature Geoscience” that provides an explanation for this phenomenon that had been observed a number of times in the last 140 years but had remained mysterious. According to a team led by Cheng Li of CalTech, Pasadena, the presence of water is the key to its origin.

The SpaceX Dragon spacecraft at the beginning of its CRS-6 mission blasting off atop a Falcon 9 rocket (Photo NASA)

A few hours ago the SpaceX Dragon spacecraft blasted off on a Falcon 9 rocket from Cape Canaveral in its CRS-6 (Cargo Resupply Service 6) mission, also referred to as SPX-6. This is the 6th of 12 missions that for the Dragon spacecraft to the International Space Station with a cargo and its return to Earth, again with a cargo.

Supernova in the galaxy M82 captured by the Swift satellite. Mid-ultraviolet light is shown in blue, near-UV light in green and visible light in red (Image NASA/Swift/P. Brown, TAMU)

A research conducted by a team led by astronomer Peter A. Milne of the University of Arizona published in two articles in the “Astrophysical Journal” shows that Type Ia supernovae can be divided into two groups with different characteristics. For years, astronomers had thought that their brightness depended almost exclusively on their distance. This can have consequences on our knowledge of the universe expansion, also calculated based on this type of supernovae.