News tagged with sun

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Could alien life cope with a hotter, brighter star?

The stars in the night sky shine in myriad hues and brightnesses—piercing blues, clean whites, smoldering crimsons. Every star has a different mass, the basic characteristic that determines its size, lifespan, ...

Mar 24, 2014
4.7 / 5 (7) 0

How do you jumpstart a dead star?

It's a staple of science fiction, restarting our dying star with some kind of atomic superbomb. Why is our sun running out of fuel, and what can we actually do to get it restarted?

Mar 14, 2014
4.3 / 5 (31) 15

Rosetta's comet wakes up

(Phys.org) —It's back! After comet 67P/Churyumov-Gerasimenko had disappeared behind the Sun and out of the Earth's view last year in October, the target comet of ESA's Rosetta mission can now be seen again. ...

Mar 10, 2014
5 / 5 (7) 0

NASA's IRIS spots its largest solar flare

(Phys.org) —On Jan. 28, 2014, NASA's Interface Region Imaging Spectrograph, or IRIS, witnessed its strongest solar flare since it launched in the summer of 2013. Solar flares are bursts of x-rays and light ...

Feb 21, 2014
3.1 / 5 (20) 0

Why is the sun going quiet?

The sun is our nearest star and the source of all our light and heat on Earth but recent reports have highlighted an ongoing steep decline in solar activity. ...

Jan 22, 2014
4.1 / 5 (43) 16

Milky Way shaken... and stirred

A team of scientists headed by Ivan Minchev from the Leibniz Institute for Astrophysics Potsdam (AIP), has found a way to reconstruct the evolutionary history of our galaxy, the Milky Way, to a new level ...

Jan 20, 2014
3.1 / 5 (28) 1 | with audio podcast

What is a solar sail?

I'm Fraser Cain, and I'm a sailor. Well, okay, I've got a sailboat that I take out on the water when its warm and the weather's nice here on Vancouver Island. I think it's one of the reasons I absolutely ...

Jan 20, 2014
4.1 / 5 (20) 3