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Jun 9, 2024 · In a system with two known planets, astronomers spotted something new: a small object transiting across the Sun-sized star. This turned out to be another planet: extra hot and Earth-sized.
Jun 22, 2024 · Have you ever thought about humans living on other planets? With so many star systems and planets out there, finding habitable ones seems likely. “Habitable” means a rocky planet in its star’s **habitable zone**, where water might exist. But don’t pack your bags just yet.
Jun 13, 2024 · Let's say that humans actually originate from another planet. An extinction level event happened on their home planet, and a handful of them escaped, wandering through space looking for a planet that they could live on.
Jun 22, 2024 · Now, we know there are 5,000-plus in our galaxy alone; in the wider universe, astronomers believe there may be as many as 40 billion in the habitable zone. “There might be simple life all throughout the galaxy,” Jessie Christiansen, an astrophysicist at Caltech and chief scientist at the NASA Exoplanet Science Institute, told me.
Jun 26, 2024 · Bringing back rocks from another planet will be the most ambitious thing that NASA has attempted since the Apollo program.
Jun 13, 2024 · So how do we find planets that could be homes for living things? We look at stars. We watch other stars closely to see planets pass in front of them. When a planet crosses in front of a star, it’s called a transit. The planet blocks a small amount of the light from the star. We can see a very small change in the star’s brightness.
Jun 15, 2024 · Knowing what's in another planet's atmosphere can tell scientists a great deal about a world, including whether it could be hospitable to life.
