Articles sur Exoplanets

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An artist’s impression of the surface of the planet orbiting Barnard’s Star. ESO - M. Kornmesser

A super-Earth found in our stellar back yard

The new planet is believed to be orbiting Barnard's Star, a red dwarf that's not visible to the naked eye but one of the closest stars to our Solar System.
Nobody knows for sure - but it’s possible. Shutterstock

Curious Kids: Are there living things on different galaxies?

There are probably more than a million planets in the universe for every single grain of sand on Earth. That's a lot of planets. My guess is that there probably is life elsewhere in the Universe.
The other galaxies are there, but they are hiding a very long way away.

Curious Kids: Where are all the other galaxies hidden?

We are in the Milky Way. If you travelled on an extremely fast spaceship for more than two million years, you would reach our neighbour, the Andromeda galaxy. All other galaxies are even further away.
Imagined view from Kepler-10b, a planet that orbits one of the 150,000 stars that the Kepler spacecraft is monitoring. NASA/Kepler Mission/Dana Berry

Goodbye Kepler, hello TESS: Passing the baton in the search for distant planets

When NASA first started planning the Kepler mission, no one knew if the universe held any planets outside our solar system. Thousands of exoplanets later, the search enters a new phase as Kepler retires.
An artist’s impression of the exoplanet in close orbit to a star. ESA, NASA, G. Tinetti (University College London, UK & ESA) and M. Kornmesser (ESA/Hubble)

We’ve found an exo-planet with an extraordinarily eccentric orbit

A solitary planet in an eccentric orbit around an ancient star may help astronomers understand exactly how such planetary systems are formed.

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