Infrared Astronomy

The technical approaching of Spitzer is attached in four basic physical values that define the importance of IR in the investigation of astrophysical phenomena. The infrared region is part of the electromagnetic spectrum and ranges from 1 micron (near infrared) to 200 microns (far infrared). Human eyes are only sensitive to light between 0.4 and 0.7 microns.

Infrared observations expose cool state of matter.

Solid objects in space - from the size of a grain of interstellar dust (less than a micron) to the giant planets - have temperatures ranging from 3 to 1500 degrees Kelvin (K). 

The Star conflict will be with Andromeda

Shock will grow a new galaxy, which sum the mass of the Milky Way and Andromeda, where the Sun, according to observations made ​​during the last five years with the Hubble Space Telescope. The vast majority of stars survives the impact, but will be in different orbits about the center of the galaxy. The Sun, according to simulations from the Hubble observations, blown away in the quiet region of the Milky Way where you are now and remain on the periphery of the new galaxy, as the authors have announced the investigation in a wheel press organized by NASA.

An elliptical spiral galaxy changed

The U.S. space agency NASA captured the evolution from an elliptical spiral galaxy, a finding that will help to understand galaxy evolution. With help of the Galaxy Evolution Explorer from NASA, the researchers found how the galaxy NGC 3801 is losing some of the cold gas inside symptom of this change. It has long been known that gas-rich spiral galaxies like our Milky Way are contracted to create elliptical galaxies as observed in the study, with a small population of stars.The process that guides the great transformation of young galaxies spiral to elliptical galaxies is the rapid loss of cold gas, which serves as fuel for the formation of new stars. Experts believe they have found that feature in the NGC 3801.