Next time you’re brushing you teeth, think on this: New research suggests that the fluorine in your toothpaste originates from the sun’s dead ancestors.
New map from a 1989 spacecraft flyby gives us a glimpse of an unseen world.
A few days before the NASA spacecraft Voyager 2 skimmed by Neptune in 1989, it acquired images of a faint, continuous ring system encircling the planet.
New image of star-forming regions in southern Milky Way. Star cluster NGC 3603 is 20,000 light-years away. Glowing gas clouds NGC 3576 is about half as far.
Will Mars and the moon will appear the same size on August 27, 2014? Nope.
Mission planners didn’t anticipate that Curiosity would be driving over an area on Mars that has sharp, pyramid-shaped rocks embedded in hard ground.
A black hole candidate known as M82 X-1 appears to have a mass of about 400 suns, making it one of only half a dozen suspected midsize black holes.
A video love letter to the Curiosity rover on Mars, narrated by Neil DeGrasse Tyson and Felicia Day.
It’s a stellar nursery, a cluster of young stars, a bright red emission nebula, a lovely blue reflection nebula, and an interesting dark nebula divided into three …
Rosetta comet mission scientists and engineers will meet later this coming weekend to narrow the selection for the mission’s Philae lander to five potential landing sites.
NASA’s Pluto-bound New Horizons spacecraft created this new video of stills taken of the Pluto-Charon system over five days last month.
A collector dropped to Earth by the Stardust spacecraft may have contained the first known contemporary dust grains from outside our solar system.
The waning crescent moon pairs up with Jupiter and Venus at dawn on Saturday, August 23. By the month’s end on Sunday, August 31, the waxing crescent moon joins up with Mars and Saturn in the evening sky.
NASA has released an animation of methane clouds moving above a hydrocarbon sea on Saturn’s large moon, Titan.
We now know more than 1,800 exoplanets – worlds orbiting distant suns – but zero exomoons. UT Arlington physicists propose a new way to search for them.
Like a giant eye, the great vortex at the north pole of planet Saturn stares back at the Cassini spacecraft as Cassini stares at it.
Martian auroras? Maybe a meteor shower? What Mars satellites might see when Comet Siding Spring sweeps super close to Mars this October.
Last week, Rosetta became the first spacecraft ever to rendezvous with a comet. Now the spacecraft is in a race against time. Rosetta’s next challenges, here.
The moon has gotten really large and bright in the sky. Full moon – closest supermoon this year – comes on August 10. Luckily, the Perseids produce more fireballs than any other meteor shower.
It’s rare to have 7 eclipses in a calendar year. It’s less rare to have 7 eclipses in 365 days. There are 7 eclipses in 365 days 29 times in the 21st century!
August 10 supermoon is the closest full moon for 2014. It might look super big seen near a horizon. But all horizon moons look big, due to the moon illusion.