Today, the European Space Agency's Proba-3 mission unveils its first images of the sun's outer atmosphere—the solar corona. The mission's two satellites, able to fly as a single spacecraft thanks to a ...

On Earth, total solar eclipses are relatively rare celestial phenomena. Months often pass between them, and even then, astronomers and stargazers have to travel around the globe to witness them. For ...

The European Space Agency (ESA) wants to bring the sort of precision normally associated with Swiss watch making to satellite navigation. When it launches in 2017, ESA’s Proba-3 mission will ...

UPDATE: Proba-3 launched successfully Thursday morning at 5:34 A.M. EST (10:34 GMT). You can watch a replay of the launch here. In a fabulous feat of formation flying, the European Space Agency’s (ESA ...

The European Space Agency's Proba-3 mission utilizes two spacecraft to create an artificial solar eclipse, enabling observation of the Sun's corona, which is typically obscured by the Sun's brightness ...

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During a solar eclipse, astronomers who study heliophysics are able to study the sun's corona—its outer atmosphere—in ways they are unable to do at any other time. The brightest part of the sun is so ...

The launch of the European Space Agency’s Proba-3 mission, initially set for today, has been rescheduled to tomorrow at 16:12 IST, according to a statement from the Indian Space Research Organisation ...