Electric Night
It may appear, at first, like the Galaxy is producing the lightning, but really it’s the Earth. The […]
Astronomy
M27: The Dumbbell Nebula
Is this what will become of our Sun? Quite possibly. The first hint of our Sun‘s future was […]
Mercury Crosses a Quiet Sun
What’s that black dot crossing the Sun? The planet Mercury. Mercury usually passes over or under the Sun, […]
Starburst Galaxy M94 from Hubble
Why does this galaxy have a ring of bright blue stars? Beautiful island universe Messier 94 lies a […]
Star Trails for a Red Planet
Does Mars have a north star? In long exposures of Earth’s night sky, star trails make concentric arcs […]
Galileo s Europa Remastered
Looping through the Jovian system in the late 1990s, the Galileo spacecraft recorded stunning views of Europa and […]
Moon and Planets at Twilight
This week’s ongoing conjunction of Venus and Jupiter may have whetted your appetite for skygazing. Tonight is the […]
Hoags Object: A Nearly Perfect Ring Galaxy
Is this one galaxy or two? This question came to light in 1950 when astronomer Arthur Hoag chanced […]
Venus and Jupiter on the Horizon
What are those two bright objects on the horizon? Venus and Jupiter. The two brightest planets in the […]
NGC 6995: The Bat Nebula
Do you see the bat? It haunts this cosmic close-up of the eastern Veil Nebula. The Veil Nebula […]