Astronomers have spotted a tiny world with an atmosphere beyond the orbit of Neptune. It should be too small for an atmosphere to be possible.
A team of astronomers have discovered a giant volcanic cave hiding beneath the surface of Venus.
The most recent interstellar visitor was crisscrossing our galaxy for some 10 to 12 billion years before it came near the Sun.
A NASA rover has discovered more building blocks of life on Mars after carrying out a chemistry experiment never before conducted on another planet.
Now Perseverance’s ground-penetrating radar (called RIMFAX) detected older river delta buried tens of meters beneath Jezero crater.
Jupiter’s icy moons may have been seeded with the chemical ingredients for life from the very beginning.
Icy moons circling the outer planets may be far more dynamic. New research suggests that when heat from tidal forces melts their ice shells from below, the sudden drop in pressure could cause hidden oceans to boil beneath the surface.
Scientists argue that two Saturnian moons, Titan and Hyperion, are not primordial worlds, but the result of a dramatic merger between two ancient moons.
The researchers found that additional studies of the data from Curiosity show that non-biological sources they had considered don’t fully explain the organics. They conclude, therefore, that a biological source is a reasonable hypothesis.
Vast amounts of hydrogen could also be locked away in our planet's core, attached to the densely packed alloyed iron that lurks therein
By firing tiny projectiles of iron-carbon alloy from a high-speed cannon, scientists have finally demonstrated that a weird part-solid, part-liquid-like state thought to exist inside Earth's inner core is indeed possible.
Careful reanalysis of data from more than a decade ago indicates that Saturn’s biggest moon, Titan, does not have a vast ocean beneath its icy surface, as suggested previously.
A new Swiss-led study uses innovative hybrid modeling to reveal that these planets could just as easily be dominated by rock as by water-rich ices.
The Moon has no atmosphere, yet it faces an invisible bombardment more relentless than any terrestrial storm, a constant rain of micrometeoroids, tiny fragments of rock and metal traveling at speeds up to 70 kilometers per second.
Astronomers found evidence of three rings around Chiron, which orbits the Sun between Uranus and Saturn.
