How much starlight has our universe produced? According to a new study, stars have radiated 4×1084 photons since the start of the universe 13.7 billion years ago. That’s the number 4 with 84 zeros behind it.
We're Social all the time
Ursid meteors to peak in moonlight3 hours ago
Ursid meteors to peak in moonlight
Don’t miss the Jupiter-Mercury conjunction