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April 2019
Scanning the skies for exoplanets
... orbit their host stars in 13 days or less; these are considered short orbital period exoplanets. Conversely, Kepler was adept at finding exoplanets with orbital periods from 10 days up to a few hundred days, a feature that proved invaluable time and... times the size of Earth, but with a whopping 23 times its mass and only two other exoplanets have been discovered that are this dense. But the compacted quality of this heavy world doesn’t just mean...
August 2018
Exoplanet census promises radical discoveries
... Kepler space telescope, progress has been rapid and surprising. The vast majority of the more than 3,700 known exoplanets are unlike any of the planets in our solar system. Most of the known exoplanets have been discovered by... to detect and determine the masses of most of the planetary host stars it discovers. WFIRST will discover and measure the masses of thousands of exoplanets and their host stars with masses ranging down to less than the mass...
24 November 2021
Astronomers discover more than 350 possible new exoplanets
...exoplanets and 17 new multi-planet systems, including one with two Saturn-sized gas giant planets located unusually close to one another. Launched by NASA on 7 March, 2009, the Kepler space telescope has in its lifetime helped to discover...-planet systems. Of these candidates, 366 have not been previously identified, they say. “Discovering hundreds of new exoplanets is a significant accomplishment by itself, but what sets this work apart is how it ...
November 2018
How many people does it take to colonise an exoplanet?
... its surface. Located at 4.2 light years (40,000 billion km), Proxima Centauri b is almost an ideal destination - as far as exoplanets go. But while this distance may be small by astronomical standards, it remains utterly vast on the human scale. The... living human colonists is a formidable challenge indeed. Artist’s concept of 51 Pegasi b, which was discovered in October 1995. The giant planet is about half the size of Jupiter and orbits its star...
05 June 2020
Exciting exoplanet find around sun-like star
...now found a system that is the mirror image of our own Sun-Earth system. Of the 4200+ exoplanets discovered in the last couple of decades since planet-hunting became a mainstream activity, most of them orbit red ...replica of our own host star. The detection of Kepler-160 is not new. It was discovered around ten years ago, followed by the confirmation of two exoplanets, called Kepler-160b and Kepler-160c, four years later. Both of these planets...
11 May 2016
Kepler scientists announce a major increase in confirmed exoplanet numbers
... a day, 7 days a week, 365 days a year looking for the tell-tale sign of a would be exoplanet. The technique Kepler uses is known as the transit method and it works by measuring the dip in star light as a planet passes...telescopes, it is no easy task to spot the genuine article. Since Kepler launched in 2009, 21 planets less than twice the size of Earth have been discovered in the habitable zones of their stars. The orange spheres represent the...
27 July 2019
Hundreds of new planet candidates detected by Kepler
...skies in the Southern Hemisphere, NASA’s latest planet hunting telescope TESS (Transiting Exoplanet Survey Satellite) has helped astronomers discover a bumper haul of 21 planets outside our solar system and it is hoped...title – K2 – and 15 months after being reassigned to its new stellar target, Kepler had racked up its 1,000th confirmed exoplanet discovery. Kepler’s K2 mission comprised of 19 ‘campaigns,’ lasting around 80 days each. These new ...
19 November 2018
Kepler officially retires after receiving final "goodnight" commands
...is exactly 388 years to the day since its namesake, German astronomer Johannes Kepler, who discovered the laws of planetary motion, passed away in 1630. Kepler was not without the occasional technical blip however; four years into...brightness for signs of Earth-sized exoplanets, its field-of-view had to be switched roughly every three months to compensate for the mechanical glitch. The work-around fix worked and Kepler was able to continue with an ...
23 June 2021
Exoplanets with Earth-like biospheres may be rare
... use to convert light and carbon dioxide into oxygen and nutrients. All except one. That planet is Kepler-442b; a rocky planet about twice the mass of the Earth, orbiting a moderately hot star to receive just... Webb Space Telescope (JWST) launches later this year, it will have the sensitivity to study the atmospheres of exoplanets and to search for the building blocks of life elsewhere in the Universe. However, with such stringent conditions...
