The vernal equinox occurs as Mercury stands still in Pisces and several of Jupiter’s moons transit in the sky this week.
The Moon passes 0.4° south of the bright red giant Antares in Scorpius this morning at 4 A.M. EST. The pair is visible in the ...
Recently, the Euclid space mission of the European Space Agency (ESA) spotted an Einstein ring in the galaxy NGC 6505, just 590 million lightyears from the earth. This may sound like a long ...