Taken by the German-built High Resolution Stereo Camera (HRSC) on the European Space Agency’s (ESA) Mars Express orbiter in June 2022, and by NASA’s NASA’s Mars Reconnaissance Orbiter using its High-Resolution Imaging Science Experiment (HiRISE) camera on September 2022, these images showcase what appears to be a snowy
But the “snow” seen here is quite different from what we have on Earth
In fact, it’s carbon dioxide ice, and at Mars’ south pole, there’s 26-foot-thick (8-meter-thick) layer of it year-round. (These image was actually taken near the summer solstice, not the winter one — it’s very cold here all year long.)
So why does it look like there’s just a dusting of “snow” in this images? Those darker areas are layers of dust that have fallen on top of the ice. The dust is typically found deep beneath the ice, but a seasonal process brings some of it to the surface.
NASA’s Mars Reconnaissance Orbiter also saw winter frost lining the sides of dunes on Mars. This frost can prevent erosion, NASA writes, keeping the dust that makes up the dunes in place until the thawing season in spring
As sunlight warms the carbon dioxide ice on Mars’ south pole in the summer, the ice begins to sublimate, or turn directly from a solid into vapor. As it does so, pockets of trapped gas form within the ice.
Eventually, the pressure builds enough to create a little gas eruption, which is powerful enough to shoot the dark dust found beneath the ice into the air. As the dust falls back to the surface, the wind carries it into these swirling patterns. (Side note: a similar process creates the spider-like features found on the Martian surface.)
So what looks like a beautiful pastoral winter scene in these Mars Express images is actually a dynamic summer scene, where gas jets spew dust across the surface. Hey, at least it’s still cold
Why is Mars called the red planet?The Egyptians called it “Her Desher,” meaning “the red one.” Even today, it is frequently called the “Red Planet” because iron minerals in the Martian dirt oxidize, or rust, causing the surface to look red.
How many Mars orbiters are there?
The following table is a list of Mars orbiters, consisting of space probes which were launched from Earth and are currently orbiting Mars. As of August 2023, there have been 18 spacecraft missions operating in Mars’ orbit, 7 of which are currently active
Who is going to Mars in 2024?
Four volunteers will participate in the final simulated mission to Mars in 2024 inside NASA’s Human Exploration Research Analog, pictured here. From left are the selected crew members and alternate crew members Anderson Wilder, Robert Wilson, Kristen Magas, Jordan Hundley, Obaid Alsuwaidi, and Tiffany Snyder
Can we live on Mars?
Aside from the necessities to sustain life, there are other challenges that people would face if they were to live on Mars. For example, the temperature gets very, very cold at night, below -100 degrees Fahrenheit. Mars also has dust storms, high levels of radiation, and less gravity than Earth.
Earth’s North Pole is famous for its snowy climes – and for hosting Santa’s workshop, of course.
But as these pictures reveal, it’s not the only planet with snow scenes this holiday season.
This is the Korolev crater, near the north pole of Mars, as captured by the European Space Agency (ESA)’s Mars Express mission.
The crater is 82km (50 miles) across, and filled with ice 1.8km thick.
It was named after rocket engineer and spacecraft designer Sergei Korolev, the architect of the Soviet Union’s space programme.
Mr Korolev worked on the first interplanetary missions to the Moon, Mars and Venus, and the Sputnik programme, which launched the world’s first artificial satellite
Which Roman god is Mars named after?
The Romans were great soldiers and thought Mars, the god of war, was very important. Mars, the red planet, was named after this god of war. According to Roman myth, Mars rode on a chariot pulled by two horses named Phobos and Deimos (meaning fear and panic
Which god is Mars in Hinduism?
Mangala
Mangala (Sanskrit: मङ्गल, IAST: Maṅgala) is the personification, as well as the name for the planet Mars, in Hindu literature.
Who gave birth to Mars?
Mars was the son of Juno, the goddess of childbirth. She was impregnated by Flora pressing a magic flower against Juno’s stomach.
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