Sun, moon, stars and beyond with Astro Bob

Astro Bob

Astro Bob: Venus-Jupiter convergence, Comet ZTF meets Mars, Aldebaran

The mid-February night sky is busy with celestial get-togethers.

Astro Bob

Astro Bob: Comet ZTF clips Capella at Full Snow Moon

Although a full moon will interfere, Comet ZTF will pass right next to one of the sky's brightest stars Sunday night.

February 05, 2023 02:14 PM

Astro Bob

Astro Bob: Celestial sights make happy February nights

Our February event calendar highlights Comet ZTF and Mars, Venus and Jupiter at dusk and a stellar reminder of spring.

February 01, 2023 04:45 PM

Comet 96P SOHO lasco Jan 31 2023 latest.jpg

Astro Bob

Astro Bob: Oddball comet swings closest to the sun

How to see returning comet 96P/Machholz as it feels the heat.

January 31, 2023 01:48 PM

Latest Headlines

Astro Bob

Astro Bob: Mars hides behind the moon … again!

For observers in the southern U.S. the moon will cover Mars on Monday night, Jan. 30. Elsewhere we'll see a very close conjunction.

January 29, 2023 02:26 PM

By Bob King

Astro Bob

Astro Bob: Winter encounters with Comet ZTF

Cold weather and clear skies means it's time to see the comet!

January 27, 2023 03:54 PM

By Bob King

Astro Bob

Astro Bob: Asteroid 2023 BU buzzes Earth, Pallas pops and Jupiter meets moon

There's a lot happening with asteroids this week including an eye-catching Jupiter-moon conjunction.

January 24, 2023 03:06 PM

By Bob King

Astro Bob

Astro Bob: Razor-thin moon complements Venus-Saturn conjunction

On Sunday, Jan. 22, at dusk, Venus and Saturn pair up in a close conjunction in the company of a slender moon.

January 22, 2023 12:55 PM

By Bob King

Astro Bob

Astro Bob: Cyclopean sunspot turns Earth's way

Solar activity is on the rise, with 10 sunspot groups visible on Wednesday. One of them is a real giant.

January 18, 2023 06:19 PM

By Bob King

ISS pass 3rd 1_18 am July 13_14 2021 S2 ANNO.jpg

Astro Bob

Astro Bob: It's space station season again!

Both the International Space Station and China's Tiangong are making convenient evening flybys. Can you spot them simultaneously?

January 17, 2023 01:44 PM

By Bob King

Astro Bob

Astro Bob: Comet ZTF will NOT streak across the sky (but it's still pretty cool)

A lot of wild things are being said about this comet. We'll get the facts straight and help you find it in binoculars.

January 15, 2023 08:08 PM

By Bob King

Astro Bob

Astro Bob: Tag along with Mars to Hyades

With a little help from the red planet, we'll find the Hyades star cluster and its striking double star, Theta Tauri.

January 12, 2023 11:12 AM

By Bob King

Astro Bob

Astro Bob: Make your own asteroid and hurl it at Earth

This new impact simulator is an absolute blast … and a little scary.

January 10, 2023 01:28 PM

By Bob King