Planet

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Articles about Planet

2,878 published items.

How Are Exoplanets Detected?
Space science

How Are Exoplanets Detected?

Astronomers detect exoplanets through transits, stellar wobble, direct imaging, microlensing, astrometry and timing signals, then use follow-up observations to rule out…

September 11, 2026
What Can Exoplanet Atmospheres Tell Us?
Space science

What Can Exoplanet Atmospheres Tell Us?

Exoplanet atmospheres can reveal molecules, temperatures, clouds, circulation and clues to a planet’s formation, climate and possible habitability by imprinting chemical…

September 11, 2026
What Is the Nearest Exoplanet to Earth?
Space science

What Is the Nearest Exoplanet to Earth?

Proxima Centauri b is the nearest confirmed exoplanet to Earth known today, orbiting Proxima Centauri a little more than four light-years from our solar system.

September 11, 2026
What Makes an Exoplanet Potentially Habitable?
Space science

What Makes an Exoplanet Potentially Habitable?

A potentially habitable exoplanet is a world where known conditions could allow environments suitable for life as we understand it; being in a star’s habitable zone is o…

September 11, 2026
What Are Exoplanets?
Space science

What Are Exoplanets?

Exoplanets are planets beyond our solar system. They range from small rocky worlds to giant planets and can orbit stars very different from the Sun.

September 10, 2026
How Do Astronomers Detect Exoplanets?
Space science

How Do Astronomers Detect Exoplanets?

Astronomers usually detect exoplanets indirectly, by measuring how a planet changes the light, motion, or gravitational behavior of its host star.

September 10, 2026