NGC 6302: The Butterfly Nebula From Hubble

This is incredible!

The Gaussian Integral is a beautiful integral for which the area between the e^(-x^2) and the x-axis from negative infinity to positive infinity perfectly equals the square root of pi. Image sources: 1, 2.

Having high def pictures of all of them is so satisfying. Bye bye blurry pictures of Pluto 😁

New Horizons image of Jupiter and Io

The night sky. 09/03/15 Watch as the colour of the sky changes due to the rising Moon. This was a 4 hour time lapse recorded last night from 21:00-01:00.

Here is a time lapse of the International Space Station flying over the earth.

Favourite APOD of 2015, #10 (October): A Gegenschein Lunar Eclipse

There’s so much going on in this photo! The Gegenschein is the faint, blueish glow you can see rising from the horizon and going behind the eclipsed Moon.

Runner-ups:

The Witch Head Nebula

Starburst Galaxy Messier 94

Cassini, Jupiter and Saturn

Caldwell 24, NGC 1275, Perseus A | May 1, 2003