Posts Tagged ‘sun’
Solar wind whips up Mercury’s poles
U. MICHIGAN (US) — Sodium and oxygen particles kicked up by a blistering solar wind at Mercury’s poles are the primary components of the planet’s wispy atmosphere, according to data from NASA’s Messenger spacecraft. Continue…
Tuesday, October 4, 2011 10:33 - 8 Comments
Top Stories - Aug 21, 2011 17:12 - 1 Comment
Detect sunspots 2 days before flares strike
STANFORD (US) — A new way to detect sunspots as deep as 65,000 kilometers inside the sun can offer up to two days’ advance warning of a solar flare. (more…)
Top Stories - Feb 24, 2011 12:13 - 1 Comment
Solar waves in UK-size magnetic hole
U. SHEFFIELD (UK) — Massive waves in giant magnetic holes on the surface of the Sun have been discovered for the first time. (more…)
Science & Technology - Feb 23, 2011 14:14 - 0 Comments
Taking temp of sun’s impact on climate
U. COLORADO (US) — A $28 million instrument scheduled to launch this week aboard NASA’s Glory mission will study changes in the sun’s brightness and its impact on Earth’s climate. (more…)
Science & Technology - Feb 4, 2011 13:24 - 2 Comments
Sun clouds explode with familiar ripple
U. WARWICK (UK) — Instabilities forming in clouds of material exploding from the Sun appear to have similarities to clouds in the Earth’s atmosphere. (more…)
Science & Technology - Aug 24, 2010 11:21 - 6 Comments
The search for sun’s mystery particle
STANFORD (US)—Is it possible that the radioactive decay of some elements sitting quietly in laboratories on Earth could be influenced by activities inside the sun, 93 million miles away. (more…)
Science & Technology - Jul 22, 2010 10:44 - 1 Comment
Supermassive stars found in nearby galaxy
U. SHEFFIELD (UK)—Astronomers have identified two young star clusters that weigh up to 300 times the mass of the Sun—a figure that doubles the previously accepted limit of solar mass. (more…)
Science & Technology - Jun 23, 2010 11:47 - 0 Comments
Physicists record Sun’s good vibrations
U. SHEFFIELD (UK)—Solar physicists have recorded the musical sounds created by longitudinal vibrations within the Sun’s atmosphere—and revealed that the sounds are caused by the movement of giant magnetic loops in the solar corona. (more…)
Earth & Environment - Mar 9, 2010 11:09 - 0 Comments
Sun pummeled Earth’s wimpy magnetic field
U. ROCHESTER (US)—The Earth’s magnetic field 3.5 billion years ago was only half as strong as it is today, new research shows. The weakness—coupled with a strong solar wind—likely allowed particles from the young Sun to strip water from early Earth’s atmosphere. (more…)
Science & Technology - Mar 8, 2010 13:18 - 0 Comments
Mega-tsunamis stoke up solar atmosphere
U. SHEFFIELD (UK)—Physicists from the University of Sheffield are scheduled to reveal their recent discovery of transition region quakes on the Sun. The finding could shed light on solar mega-tsunamis. (more…)
Science & Technology - Feb 24, 2010 12:09 - 0 Comments
Measuring matter hotter than the sun
VANDERBILT (US)—Scientists have created an exotic state of matter with a temperature of four trillion degrees Celsius. It’s the hottest temperature ever achieved in a laboratory and 250,000 times hotter than the heart of the sun. (more…)
Science & Technology - Oct 20, 2009 11:00 - 0 Comments
Cassini reshapes view of solar system
JOHNS HOPKINS (US)—It turns out that the solar system may look more like a basketball than a comet. Images from one of the sensors on NASA’s Cassini spacecraft suggest that the heliosphere—the region of our sun’s influence—may not have the comet-like shape predicted by existing models. (more…)
