In fact, the astrobiologists who authored the report contend that it's not ludicrous to think that another habitable planet could be, say, purple. Start the day smarter. Get all the news you need ...

In about 5 billion years, our Sun will run out of fuel and expand, possibly engulfing Earth. These end stages of a star's life can be utterly ...

TL;DR: NASA astronaut Don Petitt captured a stunning ... However, unlike Interstellar, this is completely real footage captured by a real-life astronaut. So, what is it? Petitt set up his camera ...

and purple, depend on the type of gas and altitude of the interaction. Interestingly, auroras aren’t exclusive to Earth. NASA has documented similar phenomena on planets like Jupiter and Saturn ...