How Many Exoplanets have We Discovered so Far?

Feb 8, 2024, 08:50 PM IST

How Many Exoplanets have We Discovered so Far?

Harshit Sabarwal

All images: NASA (Representative images)

Harshit Sabarwal

Over 5,000 'Confirmed' Exoplanets Discovered

The universe is enormous, with scientists estimating the presence of two trillion galaxies in it. Our galaxy, the Milky Way, houses billions of exoplanets. However, NASA has said more than 5,000 exoplanets have been discovered so far and are considered "confirmed."

Further search of Exoplanets is Going on

NASA has said that there are thousands of other "candidate" exoplanet detections that require further observations to say for sure whether or not the exoplanet is real.

What is an Exoplanet?

An exoplanet is any planet beyond our solar system. Most of the exoplanets orbit other stars. But, free-floating exoplanets, called rogue planets, orbit the galactic centre and are untethered to any star. Exoplanets were first discovered by scientists in the 1990s.

The Types of Exoplanets?

Exoplanets come in a wide variety of sizes, from gas giants larger than Jupiter to small, rocky planets about the size of Earth or Mars. The most common types of exoplanets are- Gas giants, Neptunian planets, Super-Earths and Terrestrial planets.