Tag: exoplanet
A planet evaporates.
Tracking the orbit of the exoplanet in Fomalhaut’s debris disk
Tracking the orbit of the exoplanet in Fomalhaut’s debris disk.
Tracking the orbit of the exoplanet in Fomalhaut’s debris disk.
Using data from a solar system detected by the Kepler space telescope, astronomers now extrapolate that there are at least as many planets as stars in our galaxy.
Billions and billions! Using data from a solar system detected by the Kepler space telescope, astronomers now extrapolate that there are at least as many planets as stars in our galaxy.
Billions and billions! Using data from a solar system detected by the Kepler space telescope, astronomers now extrapolate that there are at least as many planets as stars in our galaxy.
Another Earth just twelve light years away?
Another Earth just twelve light years away?
Another Earth just twelve light years away?
A planet without a star, only 100 light years away.
A planet without a star, only 100 light years away.
A planet without a star, only 100 light years away.
Astronomers have found a super-earth exoplanet inside its star’s habitable zone.
Worlds without end: Astronomers have found a super-earth exoplanet inside its star’s habitable zone.
The planet is large enough that it might be more like Neptune, but if it should have any earth-sized moons they will definitely be capable of supporting life.
Update: The science paper included a wonderful graphic comparing the solar system of this star with that of our own solar system. I have posted this graphic below the fold. HD40307g is the potentially habitable planet.
» Read more
Worlds without end: Astronomers have found a super-earth exoplanet inside its star’s habitable zone.
The planet is large enough that it might be more like Neptune, but if it should have any earth-sized moons they will definitely be capable of supporting life.
Update: The science paper included a wonderful graphic comparing the solar system of this star with that of our own solar system. I have posted this graphic below the fold. HD40307g is the potentially habitable planet.
» Read more
A new study suggests that the exoplanet orbiting the star Formalhaut that was supposedly imaged and then later theorized to be nothing more than a dust cloud might be a planet after all.
The uncertainty of science: A new study suggests that the exoplanet orbiting the star Formalhaut that was supposedly imaged and then later theorized to be nothing more than a dust cloud might be a planet after all.
The uncertainty of science: A new study suggests that the exoplanet orbiting the star Formalhaut that was supposedly imaged and then later theorized to be nothing more than a dust cloud might be a planet after all.
Astronomers have discovered that the nearest star to the Earth, Alpha Centauri, has an exoplanet only slightly heavier than the Earth.
Big news: Astronomers have discovered that the nearest star to the Earth, Alpha Centauri, has an exoplanet only slightly heavier than the Earth.
Alpha Centauri is actually a triple star system, with two sunlike stars in a tight orbit around each other and a third star far out orbiting them both. The exoplanet orbits one of the inner stars every 3.2 days.
More details from Nature here.
Big news: Astronomers have discovered that the nearest star to the Earth, Alpha Centauri, has an exoplanet only slightly heavier than the Earth.
Alpha Centauri is actually a triple star system, with two sunlike stars in a tight orbit around each other and a third star far out orbiting them both. The exoplanet orbits one of the inner stars every 3.2 days.
More details from Nature here.
Astronomers have discovered the first exoplanet smaller than Earth.
Astronomers have discovered the first exoplanet smaller than Earth.
The University of Central Florida has detected what could be its first planet, only two-thirds the size of Earth and located right around the corner, cosmically speaking, at a mere 33-light years away. The exoplanet candidate called UCF 1.01, is close to its star, so close it goes around the star in 1.4 days. The planet’s surface likely reaches temperatures of more than 1,000 degrees Fahrenheit. The discoverers believe that it has no atmosphere, is only two-thirds the gravity of Earth and that its surface may be volcanic or molten.
What is especially remarkable about this discovery is that the scientists used the Spitzer Space Telescope to do it, detecting the planet’s transits across the star’s face, just like Kepler. Spitzer was not designed to be able to do this.
Astronomers have discovered the first exoplanet smaller than Earth.
The University of Central Florida has detected what could be its first planet, only two-thirds the size of Earth and located right around the corner, cosmically speaking, at a mere 33-light years away. The exoplanet candidate called UCF 1.01, is close to its star, so close it goes around the star in 1.4 days. The planet’s surface likely reaches temperatures of more than 1,000 degrees Fahrenheit. The discoverers believe that it has no atmosphere, is only two-thirds the gravity of Earth and that its surface may be volcanic or molten.
What is especially remarkable about this discovery is that the scientists used the Spitzer Space Telescope to do it, detecting the planet’s transits across the star’s face, just like Kepler. Spitzer was not designed to be able to do this.
A planet turning to dust
A planet turning to dust.
A planet turning to dust.
A world made of water
Another superEarth has been found orbiting a star in the habitable zone.
Another superEarth has been found orbiting a star in the habitable zone.
An M-class dwarf star called GJ 667C, which is 22 light-years away from Earth, had previously been observed to have a super-Earth (called GJ 667Cb) that orbited the star in only 7.2 days, making it too close to the star, and thus too hot, to support life.
The study started with the aim of learning more about the orbit of GJ 667Cb. But the research team found a clear signal of a new planet (GJ 667Cc) with an orbital period of 28.15 days and a minimum mass of 4.5 times that of Earth.
Though the planet is much closer to its star than the Earth, the star itself is much smaller and dimmer, so overall the planet gets about the same amount of energy as the Earth.
Another superEarth has been found orbiting a star in the habitable zone.
An M-class dwarf star called GJ 667C, which is 22 light-years away from Earth, had previously been observed to have a super-Earth (called GJ 667Cb) that orbited the star in only 7.2 days, making it too close to the star, and thus too hot, to support life.
The study started with the aim of learning more about the orbit of GJ 667Cb. But the research team found a clear signal of a new planet (GJ 667Cc) with an orbital period of 28.15 days and a minimum mass of 4.5 times that of Earth.
Though the planet is much closer to its star than the Earth, the star itself is much smaller and dimmer, so overall the planet gets about the same amount of energy as the Earth.
Astronomers argue about the legitimacy of the first exoplanet to be directly imaged
Astronomers question the legitimacy of the first exoplanet to be directly imaged.
Astronomers question the legitimacy of the first exoplanet to be directly imaged.
A planet with two suns
Astronomers discover planet made of diamond
Astronomers have discovered a planet literally made of diamond.
The new planet is far denser than any other known so far and consists largely of carbon. Because it is so dense, scientists calculate the carbon must be crystalline, so a large part of this strange world will effectively be diamond.
Astronomers have discovered a planet literally made of diamond.
The new planet is far denser than any other known so far and consists largely of carbon. Because it is so dense, scientists calculate the carbon must be crystalline, so a large part of this strange world will effectively be diamond.
Is Gliese 581d habitable? Maybe
Is the extrasolar planet Gliese 581d habitable? Maybe.
Is the extrasolar planet Gliese 581d habitable? Maybe.
Images of an exoplanet
New Study Finds No Sign of ‘First Habitable Exoplanet’
Bad news for Gliese 581g, the first exoplanet thought to orbit its star in the habitable zone: A new study can’t find it.
Bad news for Gliese 581g, the first exoplanet thought to orbit its star in the habitable zone: A new study can’t find it.
Can We Find Trees on Other Planets?
Can we find trees on other planets?
Can we find trees on other planets?
A Steamy Super-Earth?
500th exoplanet found
The numbering ain’t really that precise, but today scientists announced the discovery of the 500th extrasolar planet.
The numbering ain’t really that precise, but today scientists announced the discovery of the 500th extrasolar planet.
It came from another galaxy
It came from another galaxy.
It came from another galaxy.
The 500th extrasolar planet about to be discovered
Based on the pace of discovery, scientists expect to discover the 500th extrasolar planet by the end of October.
Based on the pace of discovery, scientists expect to discover the 500th extrasolar planet by the end of October.
Signals from Gliese 581?
Two years before anyone knew there was a Earthlike planet orbiting Gliese 581 in its habitable zone, an astronomer doing work for SETI detected a single very unusual pulse of energy coming from that area in the sky.
Two years before anyone knew there was a Earthlike planet orbiting Gliese 581 in its habitable zone, an astronomer doing work for SETI detected a single very unusual pulse of energy coming from that area in the sky.