Category Astronomy/Space

Researchers have found, analyzing data from the Gaia satellite, that a strong star formation burst occurred in the Milky Way about 2 to 3 billion years ago. In this process, more than 50% of the stars that created the galactic disc may have been born...

Astronomers found that as planets form out of the chaotic churn of gravitational, hydrodynamic – or, drag – and magnetic forces and collisions within the dusty, gaseous protoplanetary disk that surrounds a star as a planetary system starts to form, the orbits of these planets eventually get in sync, causing them to slide – follow the leader7-style – toward the star.

The galaxy is littered with planetary systems vastly different from ours...

NASA’s Spitzer Space Telescope has revealed that some of the Universe’s earliest galaxies were brighter than expected. The excess light is a by-product of the galaxies releasing incredibly high amounts of ionising radiation. The finding offers clues to the cause of the Epoch of Reionisation, a major cosmic event that transformed the universe from being mostly opaque to the brilliant starscape seen today.

Researchers report on observations of some of the first galaxies to form in the universe, less than 1 billion years after the big bang (or a little more than 13 billion years ago)...

Astrophysicists have found signs of a cosmic event that created elements that sent gold and silver to Earth. Astrophysicists Szabolcs Márka at Columbia University and Imre Bartos (GSAS’12) at the University of Florida have identified a violent collision of two neutron stars 4.6 billion years ago as the likely source of some of the most coveted matter on Earth.

This single cosmic event, close to our solar system, gave birth to 0.3% of the Earth’s heaviest elements, including gold, platinum and uranium...