kepler tagged posts

Astronomers Find Far-flung “Super Earths” Are Not Farfetched

This artist's concept illustrates the results of a new study that measured the masses of many planets relative to the stars that host them
Caption: This artist’s concept illustrates the results of a new study that measured the masses of many planets relative to the stars that host them, leading to new information about populations of planets in the direction of the bulge of the Milky Way. This study, published in the journal Science, shows that super-Earths are common and places them in context with gas giant planets.

Credit: Westlake University

A new study shows that planets bigger than Earth and smaller than Neptune are common outside the Solar System.

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the discovery of a planet about twice the size of Earth orbiting its star farther out than Saturn is to the sun.

These results are another examp...

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Physics behind Unusual Behavior of Stars’ Super Flares discovered

Physics behind unusual behavior of stars' super flares discovered
Modeled flare atmosphere and synthesized TESS light curves. Credit: The Astrophysical Journal (2023). DOI: 10.3847/1538-4357/ad077d

Our sun actively produces solar flares that can impact Earth, with the strongest flares having the capacity to cause blackouts and disrupt communications—potentially on a global scale. While solar flares can be powerful, they are insignificant compared to the thousands of “super flares” observed by NASA’s Kepler and TESS missions. “Super flares” are produced by stars that are 100–10,000 times brighter than those on the sun.

The physics are thought to be the same between solar flares and super flares: a sudden release of magnetic energy...

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Earth-size, Habitable-zone Planet found hidden in early NASA Kepler data

This artist’s concept shows what exoplanet Kepler-1649c could look like on its surface. The planet is the closest to Earth in size and temperature found yet in data from the Kepler space telescope. Credit: NASA/Ames Research Center/Daniel Rutter

While the star it orbits is much smaller than our Sun, it gets about 75 percent of the sunlight Earth does. A team of transatlantic scientists, using reanalyzed data from NASA’s Kepler space telescope, has discovered an Earth-size exoplanet orbiting in its star’s habitable zone, the area around a star where a rocky planet could support liquid water.

Scientists discovered this planet, called Kepler-1649c, when looking through old observations from Kepler, which the agency retired in 2018...

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How many Earth-like Planets are around Sun-like Stars?

Exoplanets concept illustration (stock image).
Credit: © Dimitar Marinov / Adobe Stock

A new study provides the most accurate estimate of the frequency that planets that are similar to Earth in size and in distance from their host star occur around stars similar to our Sun. Knowing the rate that these potentially habitable planets occur will be important for designing future astronomical missions to characterize nearby rocky planets around sun-like stars that could support life.

Thousands of planets have been discovered by NASA’s Kepler space telescope...

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