Auroras and Star Trails over Iceland
It was one of the quietest nights of aurora in weeks. Even so, in northern- Iceland during last […]
NASA
NGC 2440: Pearl of a New White Dwarf
Like a pearl, a white dwarf star shines best after being freed from its shell. In this analogy, […]
Ares 3 Landing Site: The Martian Revisited
This close-up from the Mars Reconnaissance Orbiter’s HiRISE camera shows weathered craters and windblown deposits in southern Acidalia […]
Jupiter, Ganymede, Great Red Spot
In this sharp snapshot, the Solar System’s largest moon Ganymede poses next to Jupiter, the largest planet. Captured […]
Dwarf Planet, Bright Spot
Now at Ceres, Dawn’s camera recorded this closer view of the dwarf planet’s northern hemisphere and one of […]
The Magnificent Horsehead Nebula
Sculpted by stellar winds and radiation, a magnificent interstellar dust cloud by chance has assumed this recognizable shape. […]
Two Worlds One Sun
How different does sunset appear from Mars than from Earth? For comparison, two images of our common star […]
The Sky from Mauna Kea
What if you could stand at the top of a volcano and peer out across the universe? If […]
MyCn18: An Hourglass Planetary Nebula
The sands of time are running out for the central star of this hourglass-shaped planetary nebula. With its […]
Trio Leo
This popular group is famous as the Leo Triplet – a gathering of three magnificent galaxies in one […]