Globular Cluster M3

Part of our Local Group of galaxies, the Triangulum Galaxy (M33) is about 3 million light years away and the most distant object visible to the naked eye under dark skies.

The Monkey Head Nebula is located about 6400 light-years away, in the constellation Orion. It’s a gorgeous cloud of gas surrounding a cluster of young stars. I processed this data a couple of different ways; one using the “Hubble palette” and another using my own color scheme. The colors represent different kinds of ionized gases:…

Located about 34,000 light-years away within the constellation Canes Venatici, this tight ball of half a million stars formed just outside the disk of our galaxy – and so its stars never got mixed in with it. They’ve just been sitting there for over 11 billion years. One of the prettiest globular clusters in the…

This gorgeous nebula, formally known as NGC281 in the constellation Cassiopeia, goes by the informal name of “The Pac-Man Nebula.” I don’t see a Pac-Man. I think it’s a case where if you look at it through a telescope with your eyes, you only see the brightest parts – and then, maybe it looks a…

I don’t know why the press has latched onto the name “the green comet” for C/2022 E3 (ZTF) – most comets are green, and it’s too dim to see any color at all if you’re viewing it through binoculars or a telescope. But through 2 hours of total exposure time, the colors do emerge, and…

Try saying that three times fast! Fortunately, the “Silver Sliver Galaxy” has a formal name that’s easier to pronounce: NGC 891. It’s about 30 million light-years away, and is thought to be very similar to what our own Milky Way galaxy would look like when viewed edge-on. Explore the wider-field image; click on it for…