Total lunar eclipse before dawn on April 4th
An unusually brief total eclipse of the Moon will be visible before dawn this Saturday, April 4th, from western North America. The eclipse happens on Saturday evening for Australia and East Asia.
The mystery of nanoflares
When you attach the prefix "nano" to something, it usually means "very small." Solar flares appear to be the exception.
Ring of light: Total eclipse over Svalbard islands in Arctic (Images)
Sky-gazers looked up in awe Friday as the moon blocked the sun in a total solar eclipse that momentarily darkened a slice of northern Europe.
Suddenly, the sun is eerily quiet: Where did the sunspots go?
The sun has gone quiet. Almost too quiet. A few weeks ago it was teeming with sunspots, as you would expect since we are supposed to be in the middle of solar maximum-the time in the sun's 11-year cycle when ...
Hot explosions on the cool sun
(Phys.org) —The Sun is more spirited than previously thought. Apart from the solar eruptions, huge bursts of particles and radiation from the outer atmosphere of our star, also the cooler layer right below ...
Image of solar activity shows two bright bands circling the Sun
(Phys.org) —Back in 1998, the Sun was behaving as expected. The approximately 11-year cycle of activity was proceeding smoothly, heading towards a peak in 2001.
Physics professor finds old Roman fort in England aligned with the sun
Dragons awaken and Clarkson goes green in April Fools' medley
Greece could adopt Bitcoin, global warming might awaken dragons and disgraced motoring show host Jeremy Clarkson is going green: Aprils Fools' Day jokes around Europe on Wednesday ranged from chuckle-worthy to weird.
The ages of sun-like stars
The mass of a star is perhaps its most significant feature. It determines how brightly it shines (a star ten times more massive than the Sun will, during its normal lifetime, shine about forty million times ...
Researchers study fluctuations in solar radiation
The Sun is the Earth's principal source of energy and climate driver. Yet sometimes it sends more light to the Earth than other times. Astronomers working with Natalie Krivova at the Max Planck Institute ...
Rotation of planets influences habitability
There are currently almost 2,000 extrasolar planets known to us, but most are inhospitable gas giants. Thanks to NASA's Kepler mission, a handful of smaller, rockier planets have been discovered within the ...
Evidence of a local hot bubble carved by a supernova
I spent this past weekend backpacking in Rocky Mountain National Park, where although the snow-swept peaks and the dangerously close wildlife were staggering, the night sky stood in triumph. Without a fire, ...
Europe sees five possible sites for comet landing
The European Space Agency (ESA) on Monday said it had drawn up a shortlist of five possible sites for carrying out the first-ever landing on a comet.
Tiny "nanoflares" might heat the Sun's corona
Why is the Sun's million-degree corona, or outermost atmosphere, so much hotter than the Sun's surface? This question has baffled astronomers for decades. Today, a team led by Paola Testa of the Harvard-Smithsonian ...