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  • Are We Alone? - Science@NASA
    We stand at a crossroads in the search for life We've found thousands of planets in our Milky Way galaxy, a large fraction of them in Earth's size range and orbiting in their stars' "habitable zones" – the distance from the star at which liquid water could exist on the surface
  • The Search for Exoplanets: Could Another Earth Be Out There?
    Today, that age-old question has transformed into a rigorous scientific pursuit The search for exoplanets—planets that orbit stars beyond our Sun—is no longer fantasy It is a frontier where astronomy, planetary science, and dreams converge
  • Fermi paradox - Wikipedia
    There are two parts of the Fermi paradox that rely on empirical evidence—that there are many potentially habitable planets, and that humans see no evidence of life
  • Where Is Planet Nine? Its Hiding Places Are Running Out
    Astronomers leading the search for the potential planet orbiting our sun far beyond Neptune recently revealed that they’ve whittled away at where it might be in the sky, eliminating 78
  • What Other Worlds Are Out There? | NIST
    There are two main ways to look for exoplanets In the “transit” method, scientists train telescopes on a field of stars and look for ones that periodically dim slightly This dimming indicates an orbiting planet crossing in front of its star from our vantage point here on Earth
  • Weve Never Found Anything Like Our Solar System. Is It a Freak in . . .
    We've found nothing else out there like our own Solar System This has led some to conclude that our home star and its brood could be outliers in some way – perhaps the only planetary system of its kind
  • Beyond Our Solar System - Arts Sciences Magazine
    Their observations, which took scientists a year to fully embrace, led to an explosion in the hunt for planets other than the eight that circle our own Sun, and instead might be light-years away orbiting other stars in the Milky Way
  • Exoplanets: Everything you need to know about the worlds beyond our . . .
    Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system The word "exoplanet" derives from the term "extrasolar planet," which hints at its
  • Exoplanets Discovery and the Quest to Find Alien Life: Are We Alone in . . .
    Learn how exoplanets are discovered, what makes planets beyond our solar system unique, and how they drive the ongoing search for alien life in the universe
  • The Big Questions - NASA Science
    How do we find exoplanets? The successes of discovering exoplanets in recent decades seem to be telling us that the galaxy is teeming with trillions of exoplanets, but finding them isn't easy Planets are typically billions of times fainter than the stars they orbit, and they are incredibly distant





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