Main-belt world Egeria is drifting near the star 80 Virginis tonight — the asteroid’s motion will be readily observable.

We cannot measure the slowing of time near the Big Bang because there is no “cosmic clock” outside of this event against ...

Today in the history of astronomy, the facility that eventually will become the Cape Canaveral Spaceport and Kennedy Space ...

New analysis of ALMA observations of interstellar comet 3I/ATLAS show its water carries a chemical signature pointing to a colder, more distant origin than any comet ever measured.

A crescent Moon guides the way to the Red Planet as galaxies glow and Venus stands between the horns of the Bull in the sky ...

Now 15th magnitude, the comet is well-positioned for observation late overnight and into the early-morning hours.

M94, also called the Croc’s Eye Galaxy, glows high in the sky tonight. How much detail can your scope pick out?

Stars twinkle and sometimes appear to move around due to our atmosphere “scrambling” their light as it travels to our eyes.

M51 and M101. Although technically the same magnitude, one is more challenging than the other. Let’s take advantage of the moonless early-evening sky to enjoy two lovely face-on spiral galaxies. We’ll ...

The Vespera II — X Edition from Vaonis, 'Cellarius Atlas' published by Taschen, and Celestron's NexYZ DX Smartphone Adapter ...