Stars die and reborn…They get so hot that the nuclei of the atoms fuse together deep within them to make the oxygen we breathe, the carbon in our muscles, the calcium in our bones, the iron in our blood. All was cooked in the fiery hearts of long vanished stars…The cosmos is also within us. We’re made of star stuff. We are a way for the cosmos to know itself.

Carl Sagan

The relative sizes of a number of objects, including the three (known) members of Alpha Centauri triple system and some other stars for which the angular sizes have also been measured with the Very Large Telescope Interferometer (VLTI) at the ESO Paranal Observatory. The Sun and planet Jupiter are also shown for comparison.

Breaking News: August 24,

The closest potentially habitable planet to our solar system has been found!

In a discovery that has been years in the making, researchers have confirmed the existence of a rocky planet named Proxima b orbiting Proxima Centauri, the closest star to our sun, according to a new study. It is the closest exoplanet to us in the universe.

Given the fact that Proxima b is within the habitable zone of its star, means liquid water should exist on the surface, it may also be the closest possible home for life outside of our solar system,. Because of its location, the researchers hope it provides an opportunity for possible “robotic exploration in the near future. 

This artist’s impression above shows a view of the surface of the planet Proxima b. It is not only nice for having it in our neighborhood, but it’s a dream come true for astronomers if we think about follow-up observation.“Proxima Centauri coexists with a binary star in Alpha Centauri, a well-studied star system that serves as a neighbor to our sun. Proxima b is a mere 4.2 light-years away from our solar system.

Scientists find monster young star that’s 30 times the mass of our sun

Scientists just discovered a star more than 30 times the mass of the sun, and it’s probably not done growing yet. The star is still just a “protostar,” or a baby star that doesn’t have a fusion-powered core yet, so this is a rare opportunity for scientists to study how giant stars like this one form. They also spotted a “Keplerian” disc around the star.

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