Extraterrestrial atmospheres
The study of extraterrestrial atmospheres is an active field of research, both as an aspect of astronomy and to gain insight into Earth's atmosphere. In addition to Earth, many of the other astronomic...
Extraterrestrial atmospheres - Wikipedia
New Horizons Flyover of Pluto
Using actual New Horizons data and digital elevation models of Pluto and its largest moon Charon, mission scientists have created flyover movies that offer spectacular new perspectives of the many unu...
Farewell Cassini: The Grand Finale and the Final Images of Saturn
After nearly 20 years, hundreds of thousands of photos, hundreds of flybys, and thousands of scientific papers, it’s time to say goodbye to Cassini. In this special video, we team up with David Joseph...
Pluto Has Been Officially Reclassified As A Planet!
Today is a historic day—one that will bring joy to the hundreds of millions of Pluto lovers around the globe. The International Astronomical Union (IAU), the body that is responsible for naming and cl...
The Atmosphere of Venus Is More Terrifying Than We Imagined
Add this to the list of reasons Venus is a blistering hellscape: not only is the surface hot enough to melt lead, not only will the sulfuric acid rainstorms burn gaping holes in your partially-melted ...
Cassini explores the depths of a methane sea on Titan
A new study gives a clearer picture of its composition and topography.
Saturn's Largest Moon Titan: A World Much Like Earth
Titan Saturn System Mission (TSSM) is a joint NASA/ESA proposal for an exploration of Saturn and its moons Titan and Enceladus, where many complex phenomena have been revealed by the recent CassiniHuy...
Moons Of Saturn May Be younger Than The Dinosaurs
New research suggests that the birth of some of Saturn’s icy moons, as well as its famous rings, might have taken place a mere 100 million years ago.
Pluto Has Tropical Region, Says New Horizons Scientists
As we expected, the new findings from New Horizons keep adding up, with the latest “dirt” on Pluto dished out at an ongoing major planetary science expo. This comes shortly after several scientific pa...
How To See Five Planets Align In The Morning Sky
If you look at the right time, the moon will also be a part of the cosmic parade. Mercury, Venus, Mars, Jupiter, and Saturn are aligning for the first time in over a decade, and there’s no need for te...
Enormous Volcano On Pluto Might Be The Biggest In The Outer Solar System
In the inner Solar System, the biggest volcano we know of is Olympus Mons on Mars, 624 kilometers (374 miles) across and 25 kilometers (16 miles) high. But what about in the outer Solar System? Well, ...
Gigantic Ice Cloud Spotted On Saturn Moon Titan
NASA’s Cassini spacecraft has detected a massive, never-before-seen icy cloud at the south pole of Saturn’s huge moon Titan. The newly spotted feature—part of a cloud system known as the south polar v...
NASA Makes Major Discovery About Atmosphere On Mars
An Earth-like atmosphere on Mars was once violently stripped away by solar wind, according to new findings from NASA's ongoing exploration of the red planet. In a press conference on Thursday, the sp...
Distant moon raises hope of finding alien life
Are we alone? Tantalising clues may come sooner than expected – and not from a planet but a remote icy moon known as Enceladus, which orbits the ringed planet, Saturn. Moons are now considered more li...
Scientists Predict Cool New Phase Of Superionic Ice
Scientists have predicted a new phase of superionic ice, a special form of ice that could exist on Uranus and Neptune, in a theoretical study performed by a team of researchers at Princeton University...
Atmosphere of Mercury
Mercury has a very tenuous and highly variable atmosphere (surface-bound exosphere) containing hydrogen, helium, oxygen, sodium, calcium, potassium and water vapor, with a combined pressure level of a...
Atmosphere of Mercury - Wikipedia
Atmosphere of Venus
The atmosphere of Venus is much denser and hotter than that of Earth. The temperature at the surface is 740 K (467 °C, 872 °F), while the pressure is 93 bar. The Venusian atmospher...
Atmosphere of Venus - Wikipedia
Atmosphere of Mars
The atmosphere of Mars is, like that of Venus, composed mostly of carbon dioxide though far thinner. There has been renewed interest in its composition since the detection of traces of methane in 2003...
Atmosphere of Mars - Wikipedia
Climate of Mars
The climate of Mars has been an issue of scientific curiosity for centuries, not least because Mars is the only terrestrial planet whose surface can be directly observed in detail from the Earth with ...
Climate of Mars - Wikipedia
Gas giant
A gas giant is a giant planet composed mainly of hydrogen and helium. Jupiter and Saturn are the Solar System's gas giants. The term "gas giant" was originally synonymous with "giant planet", but in t...
Gas giant - Wikipedia
Atmosphere of Jupiter
The atmosphere of Jupiter is the largest planetary atmosphere in the Solar System. It is mostly made of molecular hydrogen and helium in roughly solar proportions; other chemical compounds are present...
Atmosphere of Jupiter - Wikipedia
Saturn
Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Named after the Roman god of agriculture, its astronomical symbol (♄) represents the god's sic...
Saturn - Wikipedia
Uranus
Ices:
Though it is visible to the naked eye like the five classical planets, it was never recognized as a planet by ancient observers because of its dimness and slow orbit. Sir William Herschel an...
Uranus - Wikipedia
Atmosphere of Uranus
The atmosphere of Uranus, like those of the larger gas giants, Jupiter and Saturn, is composed primarily of hydrogen and helium. At depth it is significantly enriched in volatiles (dubbed "ices") such...
Atmosphere of Uranus - Wikipedia
Climate of Uranus
The climate of Uranus is heavily influenced by both its lack of internal heat, which limits atmospheric activity, and by its extreme axial tilt, which induces intense seasonal variation. Uranus's atmo...
Climate of Uranus - Wikipedia
Neptune
Neptune is the eighth and farthest planet from the Sun in the Solar System. It is the fourth-largest planet by diameter and the third-largest by mass. Among the gaseous planets in the Solar System, Ne...
Neptune - Wikipedia
Titan (moon)
Titan (or Saturn VI) is the largest moon of Saturn. It is the only natural satellite known to have a dense atmosphere, and the only object other than Earth where clear evidence of stable bodies of sur...
Titan (moon) - Wikipedia
Triton (moon)
Triton is the largest moon of the planet Neptune, discovered on October 10, 1846, by English astronomer William Lassell. It is the only large moon in the Solar System with a retrograde orbit, which i...
Triton (moon) - Wikipedia
Atmosphere of Triton
The atmosphere of Triton extends 800 kilometers above its surface. Triton's atmosphere mainly is composed of nitrogen, similar to those of Titan and Earth. The surface pressure is only 14 microbars, w...
Atmosphere of Triton - Wikipedia