In 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon.
Many people are still upset that Pluto was demoted from being a planet. But definitions of various celestial objects are fairly fluid. So whether it is an asteroid or moon or planet is up for debate.
On June 5-6, 2012, NASA’s Solar Dynamics Observatory collected images of one of the rarest predictable solar events: the transit of Venus across the face of the Sun.
This hot, acidic neighbor with its surface veiled in thick clouds hasn't benefited from the attention showered on Mars and the Moon. But Venus may offer insights into the fate of the Earth.
There are plans to cause HAVOC on Venus.
The upper atmosphere of Venus is the most Earth-like extra-terrestrial location in the solar system. It could even host life.
Enjoying the planets lined up in a row.
The five planets visible to the naked eye since ancient times are putting on a dazzling display this month, in a night-sky dance along with the Moon.
A super blue blood moon is seen from Svalbard, Norway earlier this year.
The longest lunar eclipse this century, and other special features such as Mars looking spectacular will be seen.
The Blood Moon from January 31, 2018. Our second chance to see an eclipsed Moon this year is coming up on July 28.
All five five planets visible to the naked-eye are on show in the night skies over Australia, and a Blood Moon on the way too.
National Police Air Service
No matter how cold it is, you're lucky you don't live on Venus.
KELT-9B is the hottest known planet.
Researchers recently discovered the hottest planet known. But which one is the coldest? And the biggest?
The planet is more similar to Earth than any other – except when it comes to supporting life.
This illustration shows Cassini diving through geyser plumes on Saturn’s the ocean world
moon of Enceladus.
Earth is a relatively dry planet compared to some of the other ocean worlds in our Solar system. Life needs water so what about life on these other places?
Have we really discovered other “Earth-like” planets orbiting around other stars? Understanding what we do and do not know about exoplanets is the key to answering this question.
ESO/L. Calcada/N. Risinger/Reuters
Over the last 20 years, advances in the field of exoplanet discovery have excited the imaginations of scientists and enthusiasts alike. But we're in position to know yet whether a planet is habitable.
Strange shape in Venus’ atmosphere.
Enormous odd feature presents puzzle for scientists.
It takes a lot of hard work (and a bit of luck) to get a view like this.
Recent high-profile disappointments make it tempting to this our efforts to explore Mars are cursed. But landing anywhere in space is hard – not least on the Red Planet.
Recent Martian findings are just the latest discoveries of aurora on other planets, both in and out of our solar system.
Space scientists have a busy decade ahead with plans to visit Jupiter, Mars, Mercury and other interplanetary bodies all on the cards.
This amazing photo even shows the four Galilean moons around Jupiter: Io, Europa, Ganymede, and Callisto.
Look up tonight and you'll see a stunning conjunction of the two brightest planets in the night sky.
Once there was water….
Some atomic ratio detective work on our solar system neighbors tells us a lot about their watery pasts. That Venus and Mars are mostly dry now could be a cautionary tale for us on the Blue Planet.
Cruithne’s wacky orbit around the sun.
It's the satellite you probably didn't know that Earth has. If we could land on it, it could be pretty useful
Not yet, but soon … we’re getting closer to sending people to Mars.
It was an exciting year in space exploration, with mind-blowing triumphs and heart-breaking failures. On Earth, new rockets and spacecraft were tested by space agencies and commercial ventures. SpaceX…
Building a space colony is not easy.
In June, the popular press went wild. A planet had been discovered that was so much like Earth it was heralded as our best bet for supporting life. Positioned 16 light years away, Gliese (or GJ) 832c was…