Someday, stargazers may see pink, green and violet shooting stars streak across the night sky, thanks to a startup company that wants to launch tiny, human-made meteors, according to news sources.
Will humanity find intelligent alien life anytime soon? Probably not, according to theoretical physicist Stephen Hawking.
Earthlings may have left boot prints on the moon, but even nearby stars, such as the bright Alpha Centauri system, have long been out of reach.
The dusty-red sphere now called Mars has fascinated stargazers since the dawn of humanity, but Earthlings' view of the planet has changed drastically over the years.