Supermassive black hole blowing bubbles around our Galaxy

Last year, NASA’s Fermi space telescope found a previously unseen structure: two huge gamma-ray bubbles, centered on the Milky Way. The bubbles extend 25,000 light-years north and south of the galactic center. Their nature and origin are still unclear.

Remeasuring the Universe

Astronomers have just pushed another limit. They have directly measured the distance of a remote galaxy: it is 450 million light-years away from Earth, three times further in the cosmos than the previous record.
The Very Long Baseline Array (VLBA) is a system of ten radio telescopes controlled remotely from the Array …

50 billion alien worlds in our Galaxy

If you go back in time,  a bit more than 15 years ago, there were only 9 known planets, the ones in our solar system! With the first definitive detection of an exoplanet orbiting another star in 1995 started the modern era of exoplanetary discovery.
Recently, the Kepler mission brought the …

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