A tiny world of molten rock, orbiting scorchingly close to its host star, is the smallest planet ever discovered outside our solar system, NASA announced today. And it's likely only the first in a parade of planet discoveries to be announced this spring by the Kepler Space Telescope team.
Here’s a good argument for letting your kids stay up late: A 10-year-old Canadian girl discovered a supernova over the weekend, the youngest person ever to do so.
Kathryn Aurora Gray of Fredericton, the capital of New Brunswick, made the discovery under the supervision of two other amateur astronomers, according to the Royal Astronomical Society of Canada.
Just when the search for exoplanets looked like the undisputed fashionable field of study for 2010, the cosmic microwave background (CMB) is stepping to the forefront of astronomy and cosmology. Last month, it was Oxford's Roger Penrose claiming that he'd found evidence of a cyclical universe in patterns of concentric circles in the CMB, suggesting our universe is just one of many that have come before it (and will come after it).
A Japanese probe bound for Venus has missed its orbit and been seized by the sun’s gravitational pull, in a major setback for Japan’s shoestring space program. The probe, called Akatsuki, isn’t necessarily lost however. JAXA officials are still in contact with the probe and may try to insert it into orbit around Venus when it passes near the planet again – in six years.
Last month’s solar storm was pretty stellar, but the massive flare that erupted from the sun yesterday put it to shame, lashing out from the solar surface in a beautiful filament that stretched for 435,000 miles – nearly twice the distance between the Earth and moon and about 60,000 miles larger than last month’s plasma ejection.
After months of calibration and testing, NASA’s flying telescope made its first excursion this morning, and the space agency is looking forward to analyzing the results. But, um, isn’t this sort of blurry?
By Katie PeekPosted 12.01.2010 at 2:06 pm 8 Comments
In a paper published today in the journal Nature, astronomers from Yale and Harvard universities have found evidence for a bunch of small red dwarf stars in eight nearby galaxies. The result affects astronomers' pictures of how stars form, how galaxies evolve, and perhaps even how much dark matter is out there.
NASA’s Cassini spacecraft has taken a breath of oxygen while passing over the icy surface of Saturn’s second-largest moon, marking the first time a spacecraft has directly sampled oxygen in the atmosphere of another body. Cruising just 60 miles above Rhea, one of more than 60 moons orbiting Saturn, Cassini found an extremely thin atmosphere of oxygen and carbon dioxide likely sustained by high-energy particles slamming into the moon’s frozen surface.
The current widely-held theory of life, the universe, and everything holds that at some point roughly 13.7 billion years ago everything that now is was packed into a tight little package from which sprung the Big Bang, which violently hurled everything into existence. But 13.7 billion years to get to where we are isn't enough for renowned physicist Sir Roger Penrose, and now he thinks he can prove that things aren't/weren't quite so simple.
With all the exoplanet hunting going these days, astronomers have now logged more than 500 planets orbiting other stars in the Milky Way. Detecting planets in other galaxies, however, is still beyond the reach of scientific technology. But researchers have now discovered the next best thing – a planet of extragalactic origins orbiting a star within our galaxy that was deposited there billions of years ago when the Milky Way swallowed up a smaller dwarf galaxy.