NASA Chief Scientist Predicts We'll Find Signs Of Alien Life By 2025
Earth isn't the only ocean world in our solar system. Oceans could exist in diverse forms on moons and dwarf planets, offering clues in the quest to discover life beyond our home planet. This illustration depicts the best known candidates in our search for life in the solar system. Image Credit: NASA/JPL-Caltech
This diagram shows our cosmic address at a glance. We see our planetary system around the Sun, our stellar neighborhood in our galaxy, our galaxy in the local group of galaxies, and our group in the entire universe.
Video: Must-See Solar Flare Explodes From Sun’s Surface
An incredibly stunning solar flare erupted from the sun’s surface, throwing charged particles and searing plasma millions of miles out into space on Apr. 16. NASA’s Solar Dynamics Observatory captured data from the flare. The blast was not directed at the Earth and is unlikely to hit any of the planets in our solar system.