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The odds are good that we are not alone in the universe, but while we have found thousands of exoplanets so far, finding evidence of extraterrestrial life is challenging,

NASA’s Europa Clipper will make flybys of Jupiter’s moon Europa to study the moon’s icy shell and help researchers better understand what lies beneath.

What other factors affect habitability? What if you relaxed the conditions conducive to life? Would it still exist? If so, what would it be?

The Arizona Astrobiology Center has received a $1 million gift to support interdisciplinary research exploring the origins of life and consciousness.

We know that the Earth has an iron core surrounded by a mantle and water on its surface. Science has used this simple planet model for investigating exoplanets—planets that orbit another star outside our solar system.

Earth’s photosynthetic organisms evolved under the Sun’s specific illumination. How would plants do under other stars?

If you are going to look for intelligent life beyond Earth, there are few better candidates than the TRAPPIST-1 star system, but it isn’t a perfect choice.

Most of the exoplanets discovered orbit red dwarf stars. This isn’t because red dwarfs are somehow special, simply that they are common, and this has consequences in the search for life.

You may take sleep for granted, but research suggests many planets that could evolve life don’t have a day and night cycle.

Over 5,000 exoplanets have been confirmed to date, and given that scientists estimate at least one exoplanet exists for every star in the sky, the hunt has just begun.