New Horizons Pluto Flyby 2015
Damit hätten wohl die wenigsten Planeten- Wisseschaftler gerechnet. Pluto ist wohl doch größer als zuerst angenommen und auch einer seiner Monde “ Charon “ hat es offenbar in sich. Wir bleiben auf jeden Fall an Pluto dran.
Video: New Horizons Pluto Flyby 2015
New Horizons Pluto Flyby 2015 – Powered by NASA
What have we learned so far?
The New Horizons team has already solved one of the biggest mysteries about Pluto: its size. This morning, NASA announced that Pluto is 2,370km (about 1,473 miles) in diameter, give or take 20m. That makes it ever so slightly bigger than Eris, a much darker and denser object that lives farther out in the Kuiper Belt. (Eris measures 2,336km in diameter.) Measurements of Pluto’s size before today were estimates at best, their accuracy skewed by the dwarf planet’s hazy atmosphere.
This morning also brought confirmation that Pluto has an icy polar cap, which is made of a mix of frozen methane and nitrogen gases. And while scientists had theorized that Pluto’s thin atmosphere contained nitrogen, we’ve already learned that the gas is escaping Pluto’s atmosphere much faster than expected.