Mars
Fourth planet from the Sun
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![Mars: Fourth planet from the Sun](https://www.newsr.in/en/knowledge/Mars_20190127.jpg)
Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing. It is classified as a terrestrial planet and is the second smallest of the Solar System's planets with a diameter of 6,779 km (4,212 mi). In terms of orbital motion, a Martian solar day (sol) is equal to 24.5 hours, and a Martian solar year is equal to 1.88 Earth years. Mars has two natural satellites that are small and irregular in shape: Phobos and Deimos.
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![]() NASA Discovers Mysterious Martian 'Hole' That Could Shelter Future Astronauts Credit: Wibbitz Top Stories Duration: 01:30Published | |
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Giant volcano spanning 280 miles discovered on MarsAn enormous volcano has been "hiding in plain sight" on Mars for decades, according to scientists.Sky News - Published | |
Small sats to Mars, IIST working on 70 projectsIndian Institute of Space Science and Technology (IIST) has at least 70 research projects underway, in collaboration with Isro centers, DST, DBT, DRDO, Max Planck Institute, etc. IIST has specialized..IndiaTimes - Published | |
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Trucks, cops and tattoos - the rebel race across a desertThe Atacama Desert is so dry and desolate, it is used to simulate the surface of Mars. To organise an ultramarathon there takes a unique approach.BBC Sport - Published | |
Food giant Mars to buy Hotel Chocolat in £534m dealHotel Chocolat has agreed to a £534m takeover offer from Mars, the maker of goods from Snickers bars to Pedigree dog food.Sky News - Published | |
Discovery of molten layer covering Mars may explain why Martians don't existA liquid silicate "blanket" wrapped around the core of Mars gives us new clues about the planet's history and why it is devoid of life, researchers have said.Sky News - Published | |
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'We have plans to go to Mars, Venus and Moon again': ISRO Chairman S SomnathStressing that the scientists at ISRO would be focused on taking up regular missions like launching satellites for communications and remote sensing, said S Somnath.DNA - Published | NASA manages to produce oxygen on MarsNASA has produced enough oxygen on Mars to sustain an astronaut for a few hours in a world-first experiment.Sky News - Published |
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