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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. ...

dateMar 10, 2014 in Space Exploration
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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 ...

dateFeb 21, 2014 in Space Exploration
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Image: Increasingly active Comet 67P

On 13 August 2015, Comet 67P/Churyumov–Gerasimenko will reach its closest point to the Sun along its 6.5-year long orbit. It will be around 185 million km from the Sun at 'perihelion', between the orbits ...

dateJul 01, 2015 in Space Exploration
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Still a filament arrow?

On May 28, 2015 (above left), the sun, as seen by NASA's Solar Dynamics Observatory, showed a pair of filaments in the form of an arrow. The filaments appeared to remain stable as they rotated around to the ...

dateJun 22, 2015 in Space Exploration
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What is Halley's Comet?

Halley's Comet, also known as 1P/Halley, is the most well known comet in the Solar System. As a periodic (or short-term comet) it has orbital period that is less than 200 years, and has therefore been observed ...

dateJun 15, 2015 in Space Exploration
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Will we ever colonize Mars?

Mars. It's a pretty unforgiving place. On this dry, dessicated world, the average surface temperature is -55 °C (-67 °F). And at the poles, temperatures can reach as low as -153 °C (243 °F). Much of ...

dateJun 01, 2015 in Space Exploration
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