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Super-Earth


— Space

Detection of super-Earth transit puts ground-based telescopes in the hunt

By - December 2, 2014 1 Picture
When you're hunting for exoplanets many light years away, the complications posed by the Earth's atmosphere can make the search incredibly difficult for ground-based telescopes. That's why space-based telescopes, such as Hubble, Spitzer and Kepler, are generally employed for the job. But now for the first time, astronomers have detected the transit of a super-Earth in front of a nearby Sun-like star, which could see ground-based telescopes more widely used in categorizing the growing number of exoplanets expected to be discovered in the next few years. Read More
— Space

Super Earths may actually be mini-Neptunes

By - February 5, 2013 6 Pictures
In the past couple of decades, nearly 900 planets have been identified outside of our Solar System with thousands more candidates to be considered. Among the most exciting of these exoplanets are the so-called “super-Earths” – planets somewhat larger than the Earth, yet some of which might be capable of supporting life. Unfortunately, a team led by Helmut Lammer at the Space Research Institute (IWF) of the Austrian Academy of Sciences has produced new models that indicate some of these super-Earths may really be mini-Neptunes, with deep, hydrogen-rich envelopes covering a small rocky core. Read More
— Science

Scientists say at least one in six stars has an Earth-sized planet

By - January 13, 2013 2 Pictures
The latest analysis of data coming from NASA's Kepler telescope has revealed that nearly all the Sun-like stars in our galaxy appear to have planets orbiting them, and that at least 17 percent of them – about one in six – are hosting a planet the size of our own in close orbit. Because the Milky Way is estimated to contain some 100 billion stars, this means that our galaxy alone could have at least 17 billion Earth-sized planets, some of which may harbor the conditions for life. Read More
— Space

Only 12 light years distant, two super-Earths orbit in Tau Ceti's habitable zone

By - December 20, 2012 2 Pictures
Our stellar neighborhood is becoming crowded courtesy of some newly discovered real estate. Astronomers have uncovered evidence buried in the noise of apparently empty data showing that five super-Earths are orbiting the nearby Tau Ceti – a star chosen as one of the targets in the pioneering 1960 Project OZMA search for extraterrestrial life because of its strong similarity to the Sun. Better yet, the two outermost of Tau Ceti's planets appear to be in the star's habitable zone, making them the closest known potentially habitable exoplanets. Read More
— Science

Potentially habitable super-Earth discovered in our stellar neighborhood

By - November 7, 2012 1 Picture
Due to the masterful efforts of an international team of astronomers, a new super-Earth planet has been discovered within the habitable zone of a star just 42 light years from Earth. Part of a six planetary system, the super-Earth known as HD 40307g has several promising attributes in terms of its ability to support life and because of its relative proximity, it may soon be possible to observe the planet optically. Read More
— Aircraft

CHEOPS, the first ESA “small mission,” will study super-Earths

By - October 21, 2012 3 Pictures
The European Space Agency (ESA) is set to give existing orbiting probes, such as COROT and Kepler, a helping hand in studying super-Earths. Selected from 26 proposals, the CHEOPS (CHaracterising ExOPlanets Satellite) spacecraft is the first S-class (“small”) mission in the ESA’s Science Programme. A partnership between the ESA and the Swiss Space Office, CHEOPS will not seek out new exoplanets, but will instead target nearby, bright stars that are already known to have orbiting planets. Read More
— Science

Earth destroyed repeatedly in the name of science

By - August 9, 2012 1 Picture
Unlike in old B movies, real scientists don’t scream “Fools! I’ll destroy them all!” before throwing the switch on their doomsday device. At least, most of the them don’t. However, the August 10 issue of the Astrophysical Journal reports that a team of scientists are working on destroying the world - not once, but repeatedly. Fortunately, the world they’re destroying exists only in a computer simulation and its destruction is in the service of learning more about planets revolving around other stars. Read More
— Space

Spitzer space telescope detects light from alien “super-Earth”

By - May 11, 2012 3 Pictures
NASA's Spitzer Space Telescope has detected infrared light emanating from 55 Cancri e, a dark, blazing-hot planet only twice the size of Earth and eight times as heavy. This marks the first time that light has been detected from a planet of such a small size, and the find is telling astrophysicists where to look in their search for signs of life on planets beyond our own. Read More
— Space

New "Super-Earth" discovered only 22 light years away

By - February 5, 2012 1 Picture
An international team of scientists led by Professors Guillem Anglada-Escudé and Paul Butler from the Carnegie Institution for Science in the U.S. has discovered a potentially habitable Super-Earth that's "just" 22 light years away. The new Super-Earth has a mass that is 4.5 times larger than that of our planet and it revolves around its parent star in 28 days - a star that is significantly smaller than ours. This remarkable new discovery suggests that habitable planets could exist in a wider variety of environments than previously believed. Read More
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