Mars Archives

February 15, 2024February 15, 2024 by Matt Williams

Ground-Based Lasers Could Accelerate Spacecraft to Other Stars

An artist's illustration of a light-sail powered by a radio beam (red) generated on the surface of a planet. The leakage from such beams as they sweep across the sky would appear as Fast Radio Bursts (FRBs), similar to the new population of sources that was discovered recently at cosmological distances. Credit: M. Weiss/CfA

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.

February 15, 2024February 15, 2024 by Nancy Atkinson

NASA is Trying to Fix a Problem With one of Perseverance's Instruments

NASA’s Perseverance puts its robotic arm to work around a rocky outcrop called “Skinner Ridge” in a set of images captured in June and July 2022 by the rover’s Mastcam-Z camera system. SHERLOC is mounted on the end of the arm. NASA/JPL-Caltech/ASU/MSSS

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.

February 7, 2024February 7, 2024 by Mark Thompson

Perseverance Gives Us One Last Look at the Damaged Ingenuity Helicopter

Image of the final resting place of the Ingenuity helicopter on Mars. — Ingenuity helicopter. Credit: NASA / JPL-Caltech / ASU / Simeon Schmauß

Well I consider that a success; the first aircraft on another world surpassed all expectations. Ingenuity, the helicopter that has been buzzing around on Mars has finally reached the end of its life after a total of 72 flights on the red planet. In a wonderful piece of computer imagery, Simeon Schmauß took a number of images of Ingeniuty from Perseverance and stiched them together into a mosaic and upscaled to provide a human eye view.

January 31, 2024January 31, 2024 by Laurence Tognetti

Should We Send Humans to Mars?

Featured Image: True-color image of the Red Planet taken on October 10, 2014, by India’s Mars Orbiter mission from 76,000 kilometers (47,224 miles) away. (Credit: ISRO/ISSDC/Justin Cowart) (This file is licensed under the Creative Commons Attribution 2.0 Generic license.)

Universe Today has explored the potential for sending humans to Europa, Venus, Titan, and Pluto, all of which possess environmental conditions that are far too harsh for humans to survive. The insight gained from planetary scientists resulted in some informative discussions, and traveling to some of these far-off worlds might be possible, someday. In the final installment of this series, we will explore the potential for sending humans to a destination that has been the focus of scientific exploration and science folklore for more than 100 years: Mars aka the Red Planet.

January 30, 2024January 30, 2024 by Matt Williams

A Magnetohydrodynamic Drive Could Lead to Fuel Stations on Mars

Graphic depiction of Magnetohydrodynamic Drive for Hydrogen and Oxygen Production in Mars Transfer. Credit: Alvaro Romero-Calvo

Within the next fifteen years, NASA, China, and SpaceX plan to send the first crewed missions to Mars. In all three cases, these missions are meant to culminate in the creation of surface habitats that will allow for many returns and – quite possibly – permanent human settlements. This presents numerous challenges, one of the greatest of which is the need for plenty of breathable air and propellant. Both can be manufactured through electrolysis, where electromagnetic fields are applied to water (H₂O) to create oxygen gas (O₂) and liquid hydrogen (LH₂).

While Mars has ample deposits of water ice on its surface that make this feasible, existing technological solutions fall short of the reliability and efficiency levels required for space exploration. Fortunately, a team of researchers from Georgia Tech has proposed a “Magnetohydrodynamic Drive for Hydrogen and Oxygen Production in Mars Transfer” that combines multiple functionalities into a system with no moving parts. This system could revolutionize spacecraft propulsion and was selected by NASA’s Innovative Advanced Concepts (NIAC) program for Phase I development.

January 29, 2024January 29, 2024 by Mark Thompson

Perseverance is Definitely Inside an Ancient Lake on Mars

Aerial view of Jezero Crater on Mars — Jezero Crater on Mars. Credit: NASA/JPL-Caltech/ASU

The search for life on alien worlds has captivated us for hundreds of years. In some respect, the search for life has expanded to the search for water since it is not unreasonable to assume if there is water then there is a good chance there is life too. When NASA selected the landing site for Perseverance, they were looking for such a body of water and settled upon the Jezero Crater. Images from orbiters reveal a crater that looks like it has been filled with water in the past but further investigations were needed to confirm. Now it seems, Perseverance has risen to the challenge.

January 29, 2024January 29, 2024 by Nancy Atkinson

Atmosphere Pressure Changes Could Explain Mars Methane

New simulations are helping inform the Curiosity rover’s ongoing sampling campaign. Credit:NASA/JPL-Caltech/MSSS

One ongoing mystery on Mars is the sporadic detection of atmospheric methane. Since 1999 detections have been made by Earth-based observatories, orbital missions, and on the surface by the Curiosity Rover. However, other missions and observatories have not detected methane at all, and even when detected, the abundances appear to fluctuate seasonally or even daily.

So, where does this intermittent methane come from? A group of scientists have proposed an interesting theory: the methane is being sucked out of the ground by changes in pressure in the Martian atmosphere. The researchers simulated how methane moves underground on Mars through networks of underground fractures and found that seasonal changes can force the methane onto the surface for a short time.

In their paper, published in the Journal of Geophysical Research: Planets, the scientists say their simulations predict short-lived methane pulses prior to sunrise for Mars’ upcoming northern summer period, which is a candidate time frame for Curiosity’s next atmospheric sampling campaign.

January 29, 2024January 29, 2024 by Carolyn Collins Petersen

NASA Gives us an Update on its Long-term Plans for the Moon and Mars

NASA's plans for exploration of the Moon and Mars are a unified architecture covering all mission, crew, and technology contigencies. Image courtesy NASA.

Going to Mars is a major step in space exploration. It’s not a quick jaunt nor will it be easy to accomplish. The trip is already in the planning stages, and there’s a good chance it’ll happen in the next decade or so. That’s why NASA and other agencies have detailed mission scenarios in place, starting with trips to the Moon. Recently, NASA updated its “Moon to Mars Architecture” documents, including a closer look at some key decisions about Mars exploration.

January 26, 2024January 26, 2024 by Mark Thompson

Ingenuity Suffers Rotor Damage, Ending the Mission

Ingenuity stood on the surface fo Mars — Ingenuity helicopter

There have been numerous robotic space missions reach the end of their operating life over the years and for a multitude of reasons. Be they catastrophic failure or a scheduled end but I must say one that has recently made me a little sad is the demise of the Ingenuity helicopter on Mars. It sustained damage after its recent flight and can now no longer fly. In a mission that was supposed to complete five flights in 30 days, the plucky little helicopter completed 72 flights over three years!

January 25, 2024January 25, 2024 by Matt Williams

NASA 2024 NIAC Program Selects Deep-Space Hibernation Technology for Development

Graphic depiction of A revolutionary approach to interplanetary space travel: Studying Torpor in Animals for Space-health in Humans (STASH). Color images (top) and thermal images (bottom) show a model hibernation organism requiring low environmental temperatures for torpor study. Credit: Ryan Sprenger

In the next fifteen years, NASA, China, and SpaceX will make the next great leap in space exploration by sending the first crewed missions to Mars. This presents many challenges, not the least of which is distance. Even when they are closest to each other in their orbits (aka. when Mars is in Opposition), Mars can still be up to 55 million km (34 million mi) from Earth. Using conventional propulsion (chemical rockets), a one-way transit can last six to nine months, which works out to a total mission time (including surface operations) of about three years.

That’s a very long time for people to be in microgravity, not to mention exposed to solar and cosmic radiation. To address this, NASA is investigating advanced propulsion methods that will reduce transit times and hibernation technologies that will allow crews to sleep through most of their voyage. This year, the NASA Innovative Advanced Concepts (NIAC) program selected the Studying Torpor in Animals for Space-health in Humans (STASH) experiment, a new method for inducing torpor developed by Ryan Sprenger and colleagues at the California-based biotechnology firm Fauna Bio Inc.