Scientists Found Two Exoplanets Similar to Earth 12.5 Light Years Away


A discovery is making the astronomers think that they found two Earth-like planets. The two planets are in our Galaxy, and they appear similar to Earth. Astronomers have placed these planets on the list of worlds with potentially habitable environments, and they’re in the top 19 known exoplanets. So far, we know that the exoplanets are in the constellation of Aries, at 12.5 light years away, and they may hold similarities with our planet.

The Findings

The lead author of the discovery, Mathias Zechmeister, who works as an astrophysicist at the University of Gottingen, says that the two exoplanets resemble the inner planets from our Solar System, they are more massive than Earth, and the position is in the habitable zone, which means that water exists in liquid form.

The two planets were discovered using the CARMENES next-generation telescope, which works with a particular method and situation. In general, the planetary systems around stars are detected by using the transit method, but Teegarden wasn’t correctly aligned and too dim to use this method. The telescope is in Spain’s Calar Alto Observatory, and after three years of close observation and more than 200 measurements, scientists have found signs that indicate the existence of the two new planets.

The two exoplanets named Teegarden b and Teegarden c, and the observation with light measurement demonstrates that the signal of the two planets is coming from them and not the Teegarden star. The astronomers say that Teegarden b is the innermost planet and it has a 60% chances for a temperate surface environment. Teegarden c has a temperature closely to -47°C because it is much farther.

Teegarden b is much similar to Earth, but it doesn’t mean that it is habitable. “Both planets have a minimum mass close to one Earth mass, and given a rocky, partially iron, or water composition, they are expected to have Earth-like radii,” concluded the team in their research which has been published in Astronomy & Astrophysics.


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