Astronomers discovered a quasar, which is the "brightest of its kind" and the "most luminous ... reports that it is growing by the size of one sun per day and is over 500 trillion times brighter ...

Four bright planets are conveniently placed for viewing ... Mercury is a -0.2-magnitude "morning star" rising 1.5 hours before the sun. In mid-twilight on the 1st, look 12 degrees to the lower ...

On January 4, 2025, Earth will reach its closest point to the Sun, known as Perihelion Day. This occurs every year in early January, and though the Sun will appear slightly larger, the difference ...