Astronomers have discovered the first exoplanets to be found inside an open star cluster.
Planets without end: Astronomers have discovered the first exoplanets to be found inside an open star cluster that are orbiting sun-like stars.
Tag: astronomy
149,597,870,700 meters.
A new astronomical constant: 149,597,870,700 meters.
Amateurs astronomers have once again captured images of an impact of something on Jupiter.
Amateurs astronomers have once again captured images of a major impact of something on Jupiter.
Astronomers have measured the most powerful magnetic field ever found around a star.
Astronomers have measured the most powerful magnetic field ever found around a star.
The star’s magnetic field is 20,000 times stronger than the Sun’s, and almost 10 times stronger than that detected around any other high-mass star. At about 35 times the Sun’s mass, the O-type star NGC 1624-2 lies in the open star cluster NGC 1624, about 20,000 light-years away in the constellation Perseus.
There’s a Light – We Choose to go to the Moon
An evening pause: A song by a band called There’s a Light, from their 2012 album Khartoum, expressing nicely in words, music, and images the human insistence on doing great things.
New computer models now suggest that the the habitable zone for life is far larger than previously estimated.
New computer models now suggest that the the habitable zone for life is far larger than previously estimated.
Another planet has been found in the habitable zone
Planets without end: Another planet has been found in the habitable zone.
Gliese 163c could have a size between 1.8 to 2.4 Earth radii, depending if it is composed mostly of rock or water, respectively. It receives on average 40% more light from its parent star than Earth from the Sun, making it hotter. In comparison, Venus receives 90% more light from the Sun than Earth. We do not know the properties of the atmosphere of Gliese 163c but, if we assume that it is a scaled up version of Earth’s atmosphere, then its surface temperature might be around 60°C [140°F]. Most complex life on Earth (plants, animals, and even humans) are not able to survive at temperatures above 50°C [122°F], however, plenty of extremophilic microbial life forms can thrive at those temperatures or higher.
The Solar Dynamics Observatory captured an incredible video of an August 31 eruption on the Sun.
The Solar Dynamics Observatory captured an incredible video of an August 31 eruption on the Sun. Video below the fold.
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New Horizons — on its way to Pluto — will take a look at a different Kuiper Belt object in January 2015.
New Horizons — on its way to Pluto — will take a look at a different Kuiper Belt object in January 2015.
The encounter will take place at a range of about 75 million km, a distance somewhat subject to change depending on how the probe makes its course correction. At such a great distance, New Horizons will not be able to discern features on the surface of the KBO, nor will it be able to make spectroscopic observations to try to determine the composition of the surface material.
However, New Horizons will be in an excellent position to look for small, close-in moons around the object. It will also be in a position to observe the object’s phase curve, which is a measure of how the reflectivity of the surface changes as a function of viewing angle. This will reveal a great deal about the fluffiness of the surface material (note – fluffiness is a technical term meaning, roughly, “the opposite of dense”). These two observations cannot be made from Earth, even with the most powerful telescopes available.
Have three little photons broken theoretical physics?
A bright super bubble in space
Astronomers have detected molecules of sugar in the gas cloud surrounding a young binary star about 400 light years away.
Sweet! Astronomers have detected molecules of sugar in the gas cloud surrounding a young binary star about 400 light years away.