Choose the alternative that fills in correctly and respectively the blanks in the sentences below with the missing preposition.

The Boomerang Nebula, a strange and extremely frigid object 5,000 light years away, gradually gives up its secrets

Space is cold. Very cold. ¹ fact, empty space, far ² any star or other hot object, is about -270 degrees C.

While downright frigid – a temperature low enough to freeze hydrogen ³ Earth – that's still about 2.7 degrees ⁴ absolute zero, the lowest possible temperature. The source ⁵ those couple ⁶ degrees is primordial: the leftover glow ⁷ the big bang that gave birth ⁸ our universe.

The entire cosmos is bathed ⁹ this radiation, called the cosmic microwave background. As a result, it's hard to avoid this bit of heat, meaning that ¹⁰ most of the cosmos, -270 degrees is as cold as it gets.