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Planets October 20, 2015

Alien planet found orbiting the Sun's twin

Scientists using a powerful telescope in Chile have found an alien planet circling a star that is nearly identical to the sun and located in a star cluster 2,500 light-years from Earth.

NASA October 20, 2015

An observer's guide to Comet ISON's Thanksgiving sun encounter

The incoming Comet ISON is now in the home stretch of its long-awaited hairpin loop around the sun on Thanksgiving Day.

Sun October 20, 2015

Angry sun spits two million-mph tongues of fire

The sun erupted with two of the strongest solar flares it can unleash Friday, just days after blasting an intense solar storm at Earth.

MILITARY October 20, 2015

SHIELD Act to protect from solar catastrophes, electromagnetic pulses

A bill introduced Tuesday would protect against what some call the greatest threat facing America today: a tremendous electromagnetic pulse that could destroy the electric grid, essentially sending the country back to the stone age.

Doomsday October 20, 2015

There's a hole in the sun, NASA says

During the latter part of last week, a huge void rotated across the face of the sun -- the largest hole to be observed in the sun's atmosphere in over a year.

Sun October 20, 2015

The perfect solar storm? Sun eruptions to peak in 2013

Scientists predict massive solar flares may disable wireless networks, car electronic systems and more this year.

Sun October 20, 2015

Solar storm could allow parts of the US to see polar auroras

A severe solar storm slammed Earth on Monday afternoon, increasing the chances of fluctuations in the power grid and GPS. It also pushes shimmering polar auroras to places where more people can possibly see them.

Astronomy October 20, 2015

Megasunspot's solar outbursts surprise scientists

A humongous sunspot — the biggest one seen since 1990 — produced no aurora-causing events despite firing off 10 intense solar flares in less than two weeks last month, scientists say.

Sun October 20, 2015

Partial solar eclipse to darken US skies this week

Mark Thursday (Oct. 23) on your calendar as "Solar Eclipse Day," for if the weather cooperates, you should have no difficulty observing a partial eclipse of the sun. 

NASA October 20, 2015

NASA photograph shows Comet ISON as it streaks toward sun

The potentially spectacular Comet ISON streaks through the constellation Leo in a stunning new NASA photo taken just a month before the icy object's highly anticipated close encounter with the sun.

Sun October 20, 2015

Sun unleashes strongest solar flare In months

The strongest solar flare in nearly two months erupted from the sun Tuesday, causing a minor geomagnetic storm as charged particles from the sun passed by the planet.