Sentences with phrase «comparing images of the sun»

Not exact matches

SERENE STATE An image taken in September by the STEREO spacecraft shows the sun in a state of relative serenity compared with past solar maxima.
By measuring the size of the largest raindrop imprints (inset) in ash that solidified soon after an eruption 2.7 billion years ago (pocked slab, main image) and comparing them to the imprints made by drops of various sizes and momentums in lab tests, the team estimates that the density of Earth's oxygen - free atmosphere 2.7 billion years ago most likely ranged between 50 % and 108 % of today's air and was certainly less than twice its modern density — a thickness insufficient to offset the dimness of the sun at the time.
In this image, the size of the red dwarf SO25300.5 +165258 (left) is compared to the Sun.
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