Olympus Mons is well known for being the largest volcano in the Solar System. It’s joined on Mars by three other shield volcanoes; Ascraeus, Pavonis and Arsia but a recent discovery has revealed a fifth. Provisionally called Noctis volcano, this previously unknown Martian feature reaches 9,022 metres high and 450 kilometres across. Its presence has eluded planetary scientists because it has been heavily eroded and is on the boundary of the fractured maze-like terrain of Noctis Labyrinthus.
Continue reading “Mars Was Hiding Another Giant Volcano”Perseverance Sees Phobos, Deimos and Mercury Passing in Front of the Sun
NASA’s Perseverance rover is busy exploring the Martian surface and collecting samples for eventual return to Earth. But the rover recently took some time to gaze upward and observe the heavens. Using Mastcam-Z, the rover’s primary science camera, Perseverance captured Phobos, Deimos, and Mercury as they transited in front of the Sun.
Continue reading “Perseverance Sees Phobos, Deimos and Mercury Passing in Front of the Sun”Perseverance is Keeping Track of the Big Picture While it’s Exploring Mars
It’s always a real benefit to have scientists on the ground, able to use the wealth of their experience and ingenuity to ‘think on their feet’. It is therefore always quite challenging to use space probes that to a degree need to be autonomous. This is certainly true of the NASA Perseverance Rover that has been drilling core samples that will one day (hopefully) be returned to Earth as part of the Mars Sample Return mission. Until then, a team of Geologists have developed a technique to calculate the orientation of the core samples to help with future analysis.
Continue reading “Perseverance is Keeping Track of the Big Picture While it’s Exploring Mars”Grabbing Samples from the Surface of Mars
As if the Mars Perseverance Rover and Ingenuity Drone were not exciting enough then the next step in this audacious mission takes it to a whole new level. Mars Sample Return Mission is to follow along, collect and return the samples collected by Perseverance back to Earth. However the status of Mars Sample Return is uncertain as engineers are still working on technology to retrieve the samples. The current challenge is the gripper arm that will collect the samples and stow them safely and securely before transportation without damaging them.
Continue reading “Grabbing Samples from the Surface of Mars”Curiosity Rover is Climbing Through Dramatic Striped Terrain on Mars
Just about every day we here on Earth get a breathtaking picture of Mars’s terrain sent back by a rover. But, the view from space can be pretty amazing, too. The Mars Reconnaissance Orbiter (MRO) just sent back a thought-provoking picture of Curiosity as it makes its way up a steep ridge on Mount Sharp.
Continue reading “Curiosity Rover is Climbing Through Dramatic Striped Terrain on Mars”How Startups on Earth Could Blaze a Trail for Cities on Mars
If future explorers manage to set up communities on Mars, how will they pay their way? What’s likely to be the Red Planet’s primary export? Will it be Martian deuterium, sent back to Earth for fusion fuel? Raw materials harvested by Mars-based asteroid miners, as depicted in the “For All Mankind” TV series? Or will future Martians be totally dependent on earthly subsidies?
In a new book titled “The New World on Mars,” Robert Zubrin — the president of the Mars Society and a tireless advocate for space settlement — says Mars’ most valuable product will be inventions.
Continue reading “How Startups on Earth Could Blaze a Trail for Cities on Mars”Mars Had its Own Version of Plate Tectonics
Plate tectonics is not something most people would associate with Mars. In fact, the planet’s dead core is one of the primary reasons for its famous lack of a magnetic field. And since active planetary cores are one of the primary driving factors of plate tectonics, it seems obvious why that general conception holds. However, Mars has some features that we think of as corresponding with plate tectonics – volcanoes. A new paper from researchers at the University of Hong Kong (HKU) looks at how different types of plate tectonics could have formed different types of volcanoes on the surface of Mars.
Continue reading “Mars Had its Own Version of Plate Tectonics”Electrodes in Spacesuits Could Protect Astronauts from Harmful Dust on Mars
To quote NASA associate administrator Jim Reuter, sending crewed missions to Mars by 2040 is an “audacious goal.” The challenges include the distance involved, which can take up to six months to traverse using conventional propulsion methods. Then there’s the hazard posed by radiation, which includes increased exposure to solar particles, flares, and galactic cosmic rays (GCRs). And then there’s the time the crews will spend in microgravity during transits, which can take a serious toll on human health, physiology, and psychology.
But what about the challenges of living and working on Mars for several months at a time? While elevated radiation and lower gravity are a concern, so is Martian regolith. Like lunar regolith, dust on Mars will adhere to astronauts’ spacesuits and inflict wear on their equipment. However, it also contains harmful particles that must be removed to prevent contaminating habitats. In a recent study, a team of aerospace engineers tested a new electrostatic system for removing Martian regolith from spacesuits that could potentially remove harmful dust with up to 98% efficiency.
Continue reading “Electrodes in Spacesuits Could Protect Astronauts from Harmful Dust on Mars”Ground-Based Lasers Could Accelerate Spacecraft to Other Stars
The future of space exploration includes some rather ambitious plans to send missions farther from Earth than ever before. Beyond the current proposals for building infrastructure in cis-lunar space and sending regular crewed missions to the Moon and Mars, there are also plans to send robotic missions to the outer Solar System, to the focal length of our Sun’s gravitational lens, and even to the nearest stars to explore exoplanets. Accomplishing these goals requires next-generation propulsion that can enable high thrust and consistent acceleration.
Focused arrays of lasers – or directed energy (DE) – and lightsails are a means that is being investigated extensively – such as Breakthrough Starshot and Swarming Proxima Centauri. Beyond these proposals, a team from McGill University in Montreal has proposed a new type of directed energy propulsion system for exploring the Solar System. In a recent paper, the team shared the early results of their Laser-Thermal Propulsion (LTP) thruster facility, which suggests that the technology has the potential to provide both high thrust and specific impulse for interstellar missions.
Continue reading “Ground-Based Lasers Could Accelerate Spacecraft to Other Stars”NASA is Trying to Fix a Problem With one of Perseverance's Instruments
There’s a problem with the Perseverance rover. One of its instruments, the laser-shooting SHERLOC, which is mounted on the end of the robotic arm, has a dust cover that is supposed to protect the instrument when it’s not in use. Unfortunately, the cover has been stuck open, and that can allow dust to collect on the sensitive optics. The cover is partially open, so the rover can’t use its laser on rock targets or collect mineral spectroscopy data. NASA engineers are investigating the problem and are hoping to devise a solution.
Continue reading “NASA is Trying to Fix a Problem With one of Perseverance's Instruments”