Space Telescope Gaia Sent Into ‘Retirement’ But Legacy Endures

Paris: Europe’s Gaia space telescope was powered down and sent into “retirement” on Thursday after a decade revealing the secrets of the Milky Way, but its observations will fuel discoveries for decades to come. Since launching in 2013, the telescope has been charting the positions, motion and properties of nearly two billion stars to create … Read more

What Is Dark Energy? The Mystery Behind The Expanding Universe

Paris: Dark energy makes up roughly 70 percent of the universe, yet we know nothing about it. Around 25 percent of the universe is the equally mysterious dark matter, leaving just five percent for everything that we can see and touch — matter made up of atoms. Dark energy is the placeholder name scientists have … Read more