Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

In May 2020, astronomers for the first time observed a planet getting swallowed by its host star. Based on the data at the ...

The Sedona Heritage Museum hosted Sedona-based author Diane Phelps Budden and Lowell Observatory historian Kevin Schindler ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea ...

Astronomers have spotted two hefty white dwarf stars - highly compact stellar embers - orbiting close together that appear ...

Venus may be far more geologically alive than anyone expected. New research suggests its outer crust could be churning with ...

Plutocracy, a funny word, seen occasionally in the press, reminds us oldsters of a dog, Pluto, in the Walt Disney movies. It is also the name of what used to ...

When the calendar turns, it’s time to reflect on the biggest sensations of the past year: Time’s Person of the Year, AP’s Top News Story, Hollywood’s Oscar picks — and, of course,… Read More New ...

Pluto was once called the ninth planet, but in 2006, scientists changed its status to a dwarf planet. A planet must clear its orbit of other objects, but Pluto shares its space with many small icy ...

Planets' temperatures are largely influenced by their structural characteristics and proximity to the Sun, however, Venus ...

Future missions to Venus could also supply additional data on the density and temperature of the planet's crust, which could ...

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...