Missions Archives

November 9, 2023November 9, 2023 by Matt Williams

ESA Has a Difficult Choice: Study Mars, Earth's Magnetosphere, or Gamma-Ray Bursts

The space science community has narrowed down the shortlist for ESA’s next ‘medium’ mission to three finalists: M-Matisse, Plasma Observatory and Theseus. Credit: ESA

The European Space Agency (ESA) is looking to the future and contemplating its next M-class (Medium) mission. These missions are crucial to the ESA Science Programme (part of the agency’s Science Directorate), which aims to provide the best tools to ensure Europe’s continued participation in space exploration and sustain its capabilities in space by fostering innovation, maintaining launch services, and spacecraft operations. The latest round began in December 2021, when the ESA called for proposals for the next M-class mission to launch in the mid-2030s.

In a statement issued yesterday (Wednesday, November 8th), the ESA announced that it had narrowed the list of candidates to three concepts. These include the twin M-MATISSE, the seven-spacecraft Plasma Observatory, and the THESEUS satellite. The final selection will assist ESA operations and research in space by studying the evolution and past habitability of Mars, exploring the plasma environment around Earth, or studying powerful transient events across the Universe. The final selection of one mission is expected to happen by mid-2026.

November 2, 2023November 2, 2023 by Evan Gough

ESA’s Hera Mission is Bringing Two Cubesats Along. They’ll Be Landing on Dimorphos

This illustration shows the ESA's Hera spacecraft and its two CubeSats at the binary asteroid Didymos. Image Credit: ESA

In about one year from now, the European Space Agency will launch its Hera mission. Its destination is the asteroid Didymos, and it’ll be the second human spacecraft to visit the 390-meter chunk of rock. NASA’s DART mission crashed a kinetic impactor into Didymos’ tiny moonlet Dimorphos as a test of planetary defence.

Hera will perform a follow-up investigation of the binary asteroid to measure the size and morphology of the impact crater on Dimorphos. To help it along, it’s taking two tiny CubeSats that will land on Dimorphos.

October 26, 2023October 26, 2023 by Nancy Atkinson

Mars Still Has Liquid Rock Near its Core

An artist's depiction of the liquid silicate layer wrapped around the Martian core. Credit: IPGP-CNES.

Why doesn’t Mars have a magnetic field? If it did, the planet would be protected from cosmic radiation and charged particles emitted by our Sun. With a magnetic field, perhaps the Red Planet wouldn’t be the dry, barren world it is today.

It has long been believed that Mars once had a global magnetic field like Earth does, but somehow the iron-core dynamo that generated it must have shut down billions of years ago.

But new seismic data from NASA’s InSight lander might change our understanding of Mar’s interior, as well as alter the view of how Mars evolved and changed over time. InSight’s data revealed the presence of a molten silicate layer overlying Mars’ metallic core. Scientists say this insulating layer is like a blanket that might prevent the core from producing a global magnetic field.

October 17, 2023October 17, 2023 by Evan Gough

Building Roads Out of Moon Dust

This illustration shows an interlocking paved surface around a Moon base. Image Credit: ESA

Astronauts will face a host of obstacles when they visit the Moon again. There’s powerful radiation, wild temperature swings, and challenging gravity to deal with. There’s also dust and lots of it. Moondust was a hazard for the Apollo astronauts, and future lunar astronauts will have to contend with it, too.

What if they turn some of that dust into solid surfaces to drive on?

October 14, 2023October 14, 2023 by Matt Williams

NASA's Psyche Mission is off to Asteroid Psyche

On October 13th, at 10:19 AM Eastern (07:19 AM Pacific), NASA’s Psyche mission successfully launched atop a SpaceX Falcon Heavy rocket from Launch Pad 39A at NASA’s Kennedy Space Center in Florida. This spacecraft is now on its way to rendezvous with the M-type asteroid of the same name, an object in the Main Asteroid Belt almost entirely composed of metal. This metallic asteroid is thought to be the remnant of a planetoid that lost its outer layers, leaving behind a core of iron-nickel and precious metals. By studying this object, scientists hope to learn more about the formation of rocky planets.

October 13, 2023October 13, 2023 by Evan Gough

A Huge New Gaia Data Release: More Stars, Gravitational Lenses and Asteroids

The ESA's Gaia observatory expanded its targets to include the tightly-packed center of Omega Centauri, an ancient globular cluster. Image Credit: ESA/Gaia/DPAC, CC BY-SA 3.0 IGO. Acknowedgements: Michele Trabucchi, Nami Mowlavi and Thomas Lebzelter

The ESA’s Gaia mission is releasing a new tranche of astronomical data. The mission has released three regular, massive hauls of data since it launched in 2013, named Gaia DR1, DR2, and DR3. The ESA is calling this one a ‘focused product release,’ and while it’s smaller than the previous three releases, it’s still impactful.

October 7, 2023October 7, 2023 by Nancy Atkinson

This Moon Rover Wheel Could be 3D Printed on the Moon

NASA mechanical design engineer Richard Hagen, left, and ORNL researcher Michael Borish inspect a lunar rover wheel prototype that was 3D printed at the Manufacturing Demonstration Facility. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy

When you think about sending missions to the Moon, every single gram counts on launch day. Therefore, it makes sense to live off the land when you arrive with in-situ resource utilization. For example, what if you could fly a rover without wheels and 3D print them out of lunar regolith when you get there?

It just might happen.

Researchers used a 3D printer to build the same design for a wheel that will be part of the upcoming NASA VIPER rover. It was done using additive manufacturing (another word for 3D printing), melting metal powder and laying down and bonding a large number of successive thin layers of materials into the designed shape.

October 5, 2023October 8, 2023 by Matt Williams

Magnetic Fusion Plasma Engines Could Carry us Across the Solar System and Into Interstellar Space

A new study offers a new means of propulsion that could revolutionize space travel - the Magnetic Fusion Plasma Drive (MFPD). Credit: Created with Imagine

Missions to the Moon, missions to Mars, robotic explorers to the outer Solar System, a mission to the nearest star, and maybe even a spacecraft to catch up to interstellar objects passing through our system. If you think this sounds like a description of the coming age of space exploration, then you’d be correct! At this moment, there are multiple plans and proposals for missions that will send astronauts and/or probes to all of these destinations to conduct some of the most lucrative scientific research ever performed. Naturally, these mission profiles raise all kinds of challenges, not the least of which is propulsion.

Simply put, humanity is reaching the limits of what conventional (chemical) propulsion can do. To send missions to Mars and other deep space destinations, advanced propulsion technologies are required that offer high acceleration (delta-v), specific impulse (I_sp), and fuel efficiency. In a recent paper, Leiden Professor Florian Neukart proposes how future missions could rely on a novel propulsion concept known as the Magnetic Fusion Plasma Drive (MFPD). This device combines aspects of different propulsion methods to create a system that offers high energy density and fuel efficiency significantly greater than conventional methods.

September 27, 2023September 27, 2023 by Evan Gough

Day Has Returned, but India’s Lander and Rover have Failed to Wake Up

The Pragyaan rover captured this image of the Vikram Lander on August 30th, before lunar night enshrouded it in its frigid darkness. Image Credit: ISRO.

It looks like India’s Chandrayaan-3 succumbed to the cold, and its mission is over. The frigid lunar night lasted about two weeks, and a new day has dawned. With that day came hopes of a sunlit revival for the lander and the rover, but the India Space Research Organization (ISRO) says the chances of the spacecraft awakening in the Sun are diminishing by the hour.

September 26, 2023September 26, 2023 by Evan Gough

Chinese Astronauts May Build a Base Inside a Lunar Lava Tube

Lava tubes are natural shelters and could serve as Moon bases. These images from the Lunar Reconaissance Orbiter show pits on the lunar surface. The images are each 222 meters (728 feet) wide. Credit: NASA/GSFC/Arizona State University

Caves were some of humanity’s first shelters. Who knows what our distant ancestors were thinking as they sought refuge there, huddling and cooking meat over a fire, maybe drawing animals on the walls. Caves protected our ancient ancestors from the elements, and from predators and rivals, back when sticks, stones, furs and fire were our only technologies.

So there’s a poetic parallel between early humans and us. We’re visiting the Moon again, and lunar caves could shelter us the way caves sheltered our ancestors on Earth.