Why 2024 is shaping up to be a major year for space exploration

Several new missions under NASA’s Artemis plan and Commercial Lunar Payload Services initiative will target the Moon.

The latter half of the year will feature several exciting launches, with the launch of the Martian Moons eXploration mission in September, Europa Clipper and Hera in October, and Artemis II and VIPER to the Moon in November—if everything goes as planned.

I’m a planetary scientist, and here are six of the space missions I’m most excited to follow in 2024.

Artemis II is the first crewed step in this plan, with four astronauts planned to be on board during the 10-day mission.

The mission builds upon Artemis I, which sent an uncrewed capsule into orbit around the Moon in late 2022.

Artemis II will put the astronauts into orbit around the Moon before returning them home. It is currently planned for launch as early as November 2024. But there is a chance it will get pushed back to 2025, depending on whether all the necessary gear, such as space suits and oxygen equipment, is ready.

3. VIPER to search for water on the Moon

VIPER, which stands for Volatiles Investigating Polar Exploration Rover, is a robot the size of a golf cart that NASA will use to explore the Moon’s south pole in late 2024.

Originally scheduled for launch in 2023, NASA pushed the mission back to complete more tests on the lander system, which Astrobotic, a private company, developed as part of the Commercial Lunar Payload Services program.

This robotic mission is designed to search for volatiles, which are molecules that easily vaporize, like water and carbon dioxide, at lunar temperatures. These materials could provide resources for future human exploration on the Moon.

The VIPER robot will rely on batteries, heat pipes, and radiators throughout its 100-day mission, as it navigates everything from the extreme heat of lunar daylight—when temperatures can reach 224 degrees Fahrenheit (107 degrees Celsius)—to the Moon’s frigid shadowed regions that can reach a mind-boggling -400 F (-240 C).

VIPER’s launch and delivery to the lunar surface is scheduled for November 2024.

4. Lunar Trailblazer and PRIME-1 missions

NASA has recently invested in a class of small, low-cost planetary missions called SIMPLEx, which stands for Small, Innovative Missions for PLanetary Exploration. These missions save costs by tagging along on other launches as what is called a rideshare, or secondary payload.

5. JAXA’s Martian Moon eXploration mission

While Earth’s Moon has many visitors—big and small, robotic, and crewed—planned for 2024, Mars’ moons Phobos and Deimos will soon be getting a visitor as well. The Japanese Aerospace Exploration Agency, or JAXA, has a robotic mission in development called the Martian Moon eXploration, or MMX, planned for launch around September 2024.

The mission’s main science objective is to determine the origin of Mars’ moons. Scientists aren’t sure whether Phobos and Deimos are former asteroids that Mars captured into orbit with its gravity or if they formed out of debris that was already in orbit around Mars.

The spacecraft will spend three years around Mars conducting science operations to observe Phobos and Deimos. MMX will also land on Phobos’ surface and collect a sample before returning to Earth.

6. ESA’s Hera mission

Hera is a mission by the European Space Agency to return to the Didymos-Dimorphos asteroid system that NASA’s DART mission visited in 2022.

But DART didn’t just visit these asteroids—it collided with one of them to test a planetary defense technique called “kinetic impact.” DART hit Dimorphos with such force that it actually changed its orbit.

The kinetic impact technique smashes something into an object in order to alter its path. This could prove useful if humanity ever finds a potentially hazardous object on a collision course with Earth and needs to redirect it.

Several new missions under NASA’s Artemis plan and Commercial Lunar Payload Services initiative will target the Moon.

The latter half of the year will feature several exciting launches, with the launch of the Martian Moons eXploration mission in September, Europa Clipper and Hera in October, and Artemis II and VIPER to the Moon in November—if everything goes as planned.

I’m a planetary scientist, and here are six of the space missions I’m most excited to follow in 2024.

Artemis II is the first crewed step in this plan, with four astronauts planned to be on board during the 10-day mission.

The mission builds upon Artemis I, which sent an uncrewed capsule into orbit around the Moon in late 2022.

Artemis II will put the astronauts into orbit around the Moon before returning them home. It is currently planned for launch as early as November 2024. But there is a chance it will get pushed back to 2025, depending on whether all the necessary gear, such as space suits and oxygen equipment, is ready.

3. VIPER to search for water on the Moon

VIPER, which stands for Volatiles Investigating Polar Exploration Rover, is a robot the size of a golf cart that NASA will use to explore the Moon’s south pole in late 2024.

Originally scheduled for launch in 2023, NASA pushed the mission back to complete more tests on the lander system, which Astrobotic, a private company, developed as part of the Commercial Lunar Payload Services program.

This robotic mission is designed to search for volatiles, which are molecules that easily vaporize, like water and carbon dioxide, at lunar temperatures. These materials could provide resources for future human exploration on the Moon.

The VIPER robot will rely on batteries, heat pipes, and radiators throughout its 100-day mission, as it navigates everything from the extreme heat of lunar daylight—when temperatures can reach 224 degrees Fahrenheit (107 degrees Celsius)—to the Moon’s frigid shadowed regions that can reach a mind-boggling -400 F (-240 C).

VIPER’s launch and delivery to the lunar surface is scheduled for November 2024.

4. Lunar Trailblazer and PRIME-1 missions

NASA has recently invested in a class of small, low-cost planetary missions called SIMPLEx, which stands for Small, Innovative Missions for PLanetary Exploration. These missions save costs by tagging along on other launches as what is called a rideshare, or secondary payload.

5. JAXA’s Martian Moon eXploration mission

While Earth’s Moon has many visitors—big and small, robotic, and crewed—planned for 2024, Mars’ moons Phobos and Deimos will soon be getting a visitor as well. The Japanese Aerospace Exploration Agency, or JAXA, has a robotic mission in development called the Martian Moon eXploration, or MMX, planned for launch around September 2024.

The mission’s main science objective is to determine the origin of Mars’ moons. Scientists aren’t sure whether Phobos and Deimos are former asteroids that Mars captured into orbit with its gravity or if they formed out of debris that was already in orbit around Mars.

The spacecraft will spend three years around Mars conducting science operations to observe Phobos and Deimos. MMX will also land on Phobos’ surface and collect a sample before returning to Earth.

6. ESA’s Hera mission

Hera is a mission by the European Space Agency to return to the Didymos-Dimorphos asteroid system that NASA’s DART mission visited in 2022.

But DART didn’t just visit these asteroids—it collided with one of them to test a planetary defense technique called “kinetic impact.” DART hit Dimorphos with such force that it actually changed its orbit.

The kinetic impact technique smashes something into an object in order to alter its path. This could prove useful if humanity ever finds a potentially hazardous object on a collision course with Earth and needs to redirect it.