This space probe is so small you could lose it in your backpack — and it just got launched into space

Four grams worth of space explorer.

Storm elves and sprites recorded on video

Storm elves and sprites are electric luminous fleeting phenomena that sometimes naturally occur in the upper atmosphere. A team of Spanish researchers managed to make a high speed recording of the phenomena and publish it in the Journal of Geophysical Research. Practically, sprites are electrical discharges shaped like a carrot or a column that form in the mesosphere, at about