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soho

Did You Know the Earth’s Atmosphere Extends Beyond the Orbit of the Moon?

Strictly speaking, there aren't strict boundaries between Earth and space. Our atmosphere doesn't just end at a certain altitude; it…

1 year ago

22 Years Of The Sun From Soho

SOHO is celebrating a huge milestone, and one it was never intended to meet: it has now observed one complete,…

2 years ago

Watch an Enormous “Plasma Snake” Erupt from the Sun

Over the course of April 28–29 a gigantic filament, briefly suspended above the surface* of the Sun, broke off and…

5 years ago

Kamikaze Comet Loses its Head

Like coins, most comet have both heads and tails. Occasionally, during a close passage of the Sun, a comet's head will…

5 years ago

A New Sungrazing Comet May Brighten in the Evening Sky, Here’s How to See It

A newly-discovered comet may soon become bright enough to see from a sky near you. Originally dubbed SOHO-2875, it was spotted…

5 years ago

ISON Stopped Making Dust Just Before It Passed By The Sun And Disintegrated

Last year's Thanksgiving adventure for astronomers happened when Comet ISON passed within 1.2 million kilometres (750,000 miles) of the Sun.…

6 years ago

Yesterday’s Mammoth Solar Flare Is The Biggest Of 2014 So Far

She's a rainbow! You can see the first moments of a huge flare belching off the sun in the picture…

6 years ago

Astro-Challenge: Nabbing Venus… at Inferior Conjunction

Residents of high northern latitudes can take heart this frigid January: this coming weekend offers a chance to replicate a…

6 years ago

Zombie ISON ‘Behaving Like A Comet’, Stunned Astronomers Say

Talk about the Comeback Kid. After Comet C/2012 S1 ISON rounded the sun yesterday afternoon, professional astronomers around the world looked…

6 years ago

Is Comet ISON Dead? Astronomers Say It’s Likely After Icarus Sun-Grazing Stunt

Update, 9:55 pm EST: It's a Thanksgiving miracle: apparently it now looks like ISON has actually survived!! Alright we're calling…

6 years ago