Mercurys Transit: An Unusual Spot on the Sun
What’s that dot on the Sun? If you look closely, it is almost perfectly round. The dot is […]
NASA
Three Worlds for TRAPPIST 1
Three new found worlds orbit the ultracool dwarf star TRAPPIST-1, a mere 40 light-years away. Their transits were […]
NGC 7023: The Iris Nebula
These cosmic clouds have blossomed 1,300 light-years away, in the fertile starfields of the constellation Cepheus. Called the […]
The SONG and the Hunter
Near first quarter, the Moon in March lights this snowy, rugged landscape, a view across the top of […]
A Mercury Transit Sequence
This coming Monday, Mercury will cross the face of the Sun, as seen from Earth. Called a transit, […]
Aurora over Sweden
It was bright and green and stretched across the sky. This striking aurora display was captured last month […]
Crossing Mars
Where is NASA’s rover Curiosity going on Mars? Its geographical goals are on the slopes of Mount Sharp, […]
Contemplating the Sun
Have you contemplated your home star recently? Featured here, a Sun partially eclipsed on the top left by […]
Moon over Makemake
Makemake, second brightest dwarf planet of the Kuiper belt, has a moon. Nicknamed MK2, Makemake’s moon reflects sunlight […]
Fermi’s Gamma-ray Moon
If you could only see gamma-rays, photons with up to a billion or more times the energy of […]