6
Jan 11

Sun, Moon and Earth line up for Proba-2

Source:  ESA

ESA’s Proba-2 microsatellite experienced a conjunction of the spheres on Tuesday, as the Sun, Moon and Earth all lined up in front of it.


Artist's impression of Proba witnessing the the Solar eclipse created by Earth and Moon.
Image credits: ESA/ S. Corvaja

As people on the ground observed the 4 January partial solar eclipse, Proba-2 provided a privileged top-of-atmosphere view – at least briefly. Shortly after the Moon partially blocked Proba-2’s view of the Sun, the Sun-watching satellite flew into Earth’s shadow. At that point the Sun, Moon, Earth and Proba-2 were all on the same line in space.  (read more)

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6
Jan 11

New light shed on cosmic dark ages

Source: Cambridge University

Timeline representation of the universe from Big Bang until today.
Image credit: NASA/WMAP Science Team.

Remnants of the first stars have helped astronomers get closer to unlocking the “dark ages” of the cosmos.

A team of researchers from the University of Cambridge and California Institute of Technology are using light emitted from massive black holes called quasars to "light up" gases released by the early stars, which exploded billions of years ago. As a result, they have found what they refer to as the missing link in the evolution of the chemical universe.(read more)

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