Eclipse on demand: I thought this was interesting. The European Space Agency launched a high-tech mission to create artificial solar eclipses. Using two satellites flying in perfect formation, scientists can peek at the sun’s outer layer, normally studied only once every 18 months. Bummer … We can’t watch the show from Earth.
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As massive as Jupiter. That’s the size of an exoplanet spotted by the European Space Agency’s Gaia spacecraft. Some context: Jupiter is equal to about 318 Earths, so this thing is huge. The exoplanet, Gaia 4b, is 244 light-years away and 64% as big as the sun. A year there? About 570 Earth days.