How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest ...

Sedna will reach its closest approach to the Sun in 2076, providing a remarkable space-faring opportunity that won’t come ...

The Birth of a Wild Hypothesis In the wake of New Horizons’ observations of Pluto, Zhang published a paper in 2017 that hypothesized that Pluto’s atmosphere was dominated by haze particles, which ...

To him, the exploration of the solar system was unfinished. By the spring of 1989, with a new Ph.D. in astrophysics and planetary science, Stern was already thinking about how to get NASA to send ...

Yet a trickle of reflected photons, captured by two big telescopes on opposite hemispheres, has given scientists their first good look at the most remote sizable world spotted in more than a decade.

NASA ’s James Webb Space Telescope is again on its way to expand the understanding of the outer solar system. And this time, the explanation on its dwarf planet Pluto that keeps defying ...

New James Webb Space Telescope data reveal Pluto's high-altitude haze is a key driver of the climate on the dwarf planet, offering clues to Earth's ancient atmosphere.

A powerful solar outburst on May 31 caused a rare severe geomagnetic storm warning. Scientists used real-time space-based tools to track the CME, underscoring the risks it poses to satellites and ...

Pluto's mesosphere is found between 20 kilometers and 40 kilometers (12.4 to 24.9 miles) high and reaches a maximum temperature of minus 163 degrees Celsius (110 Kelvin/minus 262 degrees ...

That’s because every spacecraft orbiting the star, along with every planet in our solar system, swoops around the sun in a flat disk called the ecliptic plane, which is tilted just 7.25 degrees ...