News tagged with solar radiation

A better way to calculate solar radiation

(Phys.org) —Research by Murdoch University, James Cook University and the University of Waterloo in Canada has revealed flaws in the way that the widely-used Ångström-Prescott equation links solar radiation ...

Oct 15, 2013
5 / 5 (3) 0

NASA releases images of M-class solar flare

On April 2, 2014, the sun emitted a mid-level solar flare, peaking at 10:05 a.m. EDT, and NASA's Solar Dynamics Observatory captured imagery of the event. Solar flares are powerful bursts of radiation. Harmful ...

Apr 02, 2014
5 / 5 (3) 1

Scientists say the ozone layer is recovering

Earth's protective ozone layer is beginning to recover, largely because of the phase-out since the 1980s of certain chemicals used in refrigerants and aerosol cans, a U.N. scientific panel reported Wednesday ...

Sep 10, 2014
3.8 / 5 (4) 1

The shadows in a city reveal its energy flow

Researchers at the Technical University of Madrid (UPM, Spain) have created "shadow models" and a type of software that calculates the amount of solar radiation that reaches streets and buildings in high resolution. ...

Nov 28, 2011
4.7 / 5 (3) 0

Can solar flares hurt astronauts?

Solar flares, coronal mass ejections, high-energy photons, cosmic rays… space is full of various forms of radiation that a human wouldn’t want to be exposed to for very long. Energized particles ...

Jan 24, 2012
4.7 / 5 (3) 0

The sun sends two CMEs toward Mercury

On the night of April 24 and the morning of April 25, 2013, the sun erupted with two coronal mass ejections (CMEs), solar phenomena that can send billions of tons of solar particles into space that can affect ...

Apr 25, 2013
4.7 / 5 (3) 0

Sun emits fourth X-class flare in a week

The sun emitted a significant solar flare—its fourth X-class flare since Oct. 23, 2013—peaking at 5:54 p.m. on Oct. 29, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare ...

Oct 30, 2013
4 / 5 (3) 0

Testing geoengineering

Solar radiation management is a class of theoretical concepts for manipulating the climate in order to reduce the risks of global warming caused by greenhouse gasses. But its potential effectiveness and risks are uncertain, ...

Oct 26, 2011
3.7 / 5 (3) 1 | with audio podcast

Storms from the sun

(PhysOrg.com) -- Space weather starts at the sun. It begins with an eruption such as a huge burst of light and radiation called a solar flare or a gigantic cloud of solar material called a coronal mass ejection ...

Mar 09, 2012
3.7 / 5 (3) 1