The coldest spot in the known universe

Everyone knows that space is cold. In the vast gulf between stars and galaxies, the temperature of gaseous matter routinely drops to 3 Kelvin, or 454 degrees below zero Fahrenheit.

Final curtain for Europe's deep-space telescope

The deep-space telescope Herschel took its final bow on Monday, climaxing a successful four-year mission to observe the birth of stars and galaxies, the European Space Agency (ESA) said.

Orion's hidden fiery ribbon

(Phys.org) —This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky. This orange glow represents faint light coming from grains of cold interstellar dust, ...

Herschel space observatory to finish observing soon

(Phys.org) —ESA's Herschel space observatory is expected to exhaust its supply of liquid helium coolant in the coming weeks after spending more than three exciting years studying the cool Universe.

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