Tag: Sun
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Transit of Mercury: How you can watch an astronomical rarity despite the clouds
A multiple-exposure photo shows Mercury as a speck making its way across the sun’s disk. (Credit: NASA) For the first time in a decade, we Earthlings can watch the planet Mercury’s black speck pass across the sun today – even in Seattle, where the skies are partly cloudy at best. “This is one of the…
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Delta 4-Heavy selected for launch of solar probe
File photo of a Delta 4-Heavy rocket launch in June 2012. Credit: ULA A NASA spacecraft that will fly closer to the sun than any mission before will launch on a Delta 4-Heavy rocket in 2018, requiring a boost from the largest active launcher in the U.S. inventory and repeated flybys around Venus to reach…