Missions Archives

April 9, 2024April 9, 2024 by Evan Gough

What a Swarm of Probes Can Teach Us About Proxima Centauri B

Artist’s impression of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri. The double star Alpha Centauri AB is visible to the upper right of Proxima itself. Credit: ESO

You’ve likely heard of the Breakthrough Starshot (BTS) initiative. BTS aims to send tiny gram-scale, light sail picospacecraft to our neighbour, Proxima Centauri B. In BTS’s scheme, lasers would propel a whole fleet of tiny probes to the potentially water-rich exoplanet.

Now, another company, Space Initiatives Inc., is tackling the idea. NASA has funded them so they can study the idea. What can we expect to learn from the effort?

April 2, 2024April 2, 2024 by Evan Gough

Want to Leave the Solar System? Here’s a Route to Take

A future interstellar probe mission aims to travel beyond the heliosphere to the local interstellar medium to understand where our home came from and where it is going. Credit: John Hopkins Applied Physics Laboratory.

The edge of the Solar System is defined by the heliosphere and its heliopause. The heliopause marks the region where the interstellar medium stops the outgoing solar wind. But only two spacecraft, Voyager 1 and Voyager 2, have ever travelled to the heliopause. As a result, scientists are uncertain about the heliopause’s extent and its other properties.

Some scientists are keen to learn more about this region and are developing a mission concept to explore it.

March 29, 2024March 29, 2024 by Evan Gough

The ESA’s Mars Rover Gets a New Map

European scientists have created an extremely detailed geological map of Oxia Planum, the landing site for the ESA's Rosalind Franklin rover. Not only will it help guide the rover's driving, it will help the rover sample the most promising sites. Image Credit: Fawdon et al. 2024.

Rosalind Franklin, the ESA’s Mars rover, is scheduled to launch no sooner than 2028. Its destination is Oxia Planum, a wide clay-bearing plain to the east of Chryse Planitia. Oxia Planum contains terrains that date back to Mars’ Noachian Period, when there may have been abundant surface water, a key factor in the rover’s mission.

March 28, 2024March 28, 2024 by Nancy Atkinson

Someone Just Found SOHO's 5,000th Comet

The 5,000th comet discovered with the Solar and Heliospheric Observatory (SOHO) spacecraft is noted by a small white box in the upper left portion of this image. A zoomed-in inset shows the comet as a faint dot between the white vertical lines. The image was taken on March 25, 2024, by SOHO’s Large Angle and Spectrometric Coronagraph (LASCO), which uses a disk to block the bright Sun and reveal faint features around it. Credit: NASA/ESA/SOHO

The Solar and Heliospheric Observatory (SOHO) was designed to examine the Sun, but as a side benefit, it has been the most successful comet hunter ever built. Since early in the mission, citizen scientists have been scanning through the telescope’s data, searching for icy objects passing close to the Sun. An astronomy student in Czechia has identified 200 comets in SOHO data since he started in 2009 at the age of 13. He recently spotted the observatory’s 5,000th comet.

March 27, 2024March 27, 2024 by Evan Gough

Phew, De-Icing Euclid’s Instruments Worked. It’s Seeing Better Now

Artist impression of the Euclid mission in space. Credit: ESA

From its vantage point at the Sun-Earth L2 point, the ESA’s Euclid spacecraft is measuring the redshift of galaxies with its sensitive instruments. Its first science images showed us what we can expect from the spacecraft. But the ESA noticed a problem.

Over time, less light was reaching the spacecraft’s instruments.

March 27, 2024March 27, 2024 by Evan Gough

A Single Grain of Ice Could Hold Evidence of Life on Europa and Enceladus

The Cassini spacecraft captured this image of cryovolcanic plumes erupting from Enceladus' ice-capped ocean. Image Credit: NASA/JPL/CalTech

The Solar System’s icy ocean moons are primary targets in our search for life. Missions to Europa and Enceladus will explore these moons from orbit, improving our understanding of them and their potential to support life. Both worlds emit plumes of water from their internal oceans, and the spacecraft sent to both worlds will examine those plumes and even sample them.

New research suggests that evidence of life in the moons’ oceans could be present in just a single grain of ice, and our spacecraft can detect it.

March 26, 2024March 26, 2024 by Evan Gough

Europe Has Big Plans for Saturn’s Moon Enceladus

A false-colour image of the plumes erupting from Enceladus. Image Credit: NASA/ESA

Saturn’s moon, Enceladus, is a gleaming beacon that captivates our intellectual curiosity. Its clean, icy surface makes it one of the most reflective objects in the entire Solar System. But it’s what’s below that ice that really gets scientists excited.

Under its icy shell is an ocean of warm, salty water, and the ESA says investigating the moon should be a top priority.

March 21, 2024March 21, 2024 by Nancy Atkinson

The Mars Science Helicopter Could be an Airborne Geologist on Mars

A model of NASA’s Mars Science Helicopter concept. Credit: NASA.

After over 70 successful flights, a broken rotor ended the remarkable and groundbreaking Ingenuity helicopter mission on Mars. Now, NASA is considering how a larger, more capable helicopter could be an airborne geologist on the Red Planet. For the past several years scientists and engineers have been working on the concept, proposing a six-rotor hexacopter that would be about the size of the Perseverance rover.

Called the Mars Science Helicopter (MSH), it would not only serve as an aerial scout for a future rover, but more importantly, it could also carry up to 5 kg (11 lbs) of science instruments aloft in the thin Martian atmosphere and land in terrain that a rover can’t reach.

A new paper presented at the March 2024 Lunar and Planetary Science Conference outlines the geology work that such a helicopter could accomplish.

March 20, 2024March 20, 2024 by Evan Gough

It’s Time to Study Lunar Lava Tubes. Here’s a Mission That Could Help

Spectacular high Sun view of the Mare Tranquillitatis pit crater revealing boulders on an otherwise smooth floor. The 100 meter pit may provide access to a lunar lava tube. Image Credit: By NASA/GSFC/Arizona State University - http://photojournal.jpl.nasa.gov/catalog/PIA13518, Public Domain, https://commons.wikimedia.org/w/index.php?curid=54853313

The Moon is practically begging to be explored, and the momentum to do so is building. The Artemis Program’s effort to return astronauts to the Moon for the first time since the Apollo missions captures a lot of attention. But there are other efforts underway.

March 1, 2024March 1, 2024 by Evan Gough

NASA Tests the New Starship Docking System

SpaceX and NASA recently performed full-scale qualification testing of the docking system that will connect SpaceX’s Starship Human Landing System (HLS) with Orion and later Gateway in lunar orbit during future crewed Artemis missions. Based on the flight-proven Dragon 2 active docking system, the Starship HLS docking system will be able to act as an active or passive system during docking. Image Credit: SpaceX

The Apollo Program delivered 12 American astronauts to the surface of the Moon. But that program ended in 1972, and since then, no human beings have visited. But Artemis will change that. And instead of just visiting the Moon, Artemis’ aim is to establish a longer-term presence on the Moon. That requires more complexity than Apollo did. Astronauts will need to transfer between vehicles.

All of that activity requires a reliable spacecraft docking system.