Behind the 8 planetary missions set to continue exploration of celestial bodies

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NASA has extended the planetary science missions of eight of its spacecraft, which will help deepen the understanding of the solar system.

Each of the missions was reviewed by more than 50 people. The decision to prolong was based on their potential to continue bringing new discoveries and addressing compelling further science questions.

“Extended missions provide us with the opportunity to leverage NASA’s large investments in exploration, allowing continued science operations at a cost far lower than developing a new mission,” said Lori Glaze, director of the Planetary Science Division at NASA’s Headquarters in Washington. “Maximizing taxpayer dollars in this way allows missions to obtain valuable new science data, and in some cases, allows NASA to explore new targets with totally new science goals.”

As long as spacecraft remain healthy, the missions could be extended for three years.

OSIRIS-APEX: OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) is on its way back to Earth to deliver samples of asteroid Bennu. This mission will be continued for nine years due to its next venture.

Next up, the spacecraft plans to encounter the 1200-foot asteroid Apophis which will come within 20,000 miles of Earth in 2029. NASA says that OSIRIS-APEX will enter orbit around Apophis soon after the asteroid’s Earth flyby, providing an unprecedented close-up look and study changes in the asteroid caused by its close flyby of Earth. It will then use the spacecraft’s gas thrusters to attempt to dislodge and study the dust and small rocks on and below Apophis’ surface. 

MAVEN: The Mars Atmosphere and Volatile Evolution (MAVEN) will study the interaction between Mars’ atmosphere and magnetic field during the upcoming solar maximum. NASA says this will deepen their understanding of how Mars’ upper atmosphere and magnetic field interact with the Sun.

NASA’s Curiosity Mars rover used its Mast Camera, or Mastcam, to survey these wind-sharpened rocks, called ventifacts, on March 15, 2022.
NASA’s Curiosity Mars rover used its Mast Camera, or Mastcam, to survey these wind-sharpened rocks, called ventifacts, on March 15, 2022.
NASA/JPL-Caltech/MSSS
The Curiosity rover have driven more than 16 miles on Mars and explored the history of habitability in Gale Crater.
The Curiosity rover have driven more than 16 miles on Mars and explored the history of habitability in Gale Crater.
Matrs Nasa
OSIRIS-REx will be the first U.S. mission to carry samples from an asteroid back to Earth.
OSIRIS-REx will be the first U.S. mission to carry samples from an asteroid back to Earth.
NASA’s Goddard Space Flight Cent

InSight: The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport mission’s seismic monitoring of “marsquakes” has provided constraints on Mars’ interior, formation, and current activity. It has operated the only active seismic station beyond Earth, and with the extension, it will continue its seismic and weather monitoring. NASA says that the mission is unlikely to continue operations for the duration of its current extended mission unless its solar panels are cleared by a passing ‘dust devil’ in Mars’ atmosphere.

Lunar Reconnaissance Orbiter: LRO will continue to study the surface and geology of the Moon. The evolution of LRO’s orbit will allow it to explore new regions in detail, including the Permanently Shadowed Regions where water ice may be found. NASA says that it will also provide crucial programmatic support for NASA’s efforts to return to the Moon.

Mars Science Laboratory: This will be the fourth extended mission for MSL. MSL and its Curiosity rover have driven more than 16 miles on Mars and explored the history of habitability in Gale Crater. NASA says that it now plans to explore the critical sulfate-bearing layers, which give unique insights into the history of water on Mars.

The Mars Odyssey mission provides a communication relay for robots on the Martian surface.
The Mars Odyssey mission provides a communication relay for robots on the Martian surface.
Mars Nasa
NASA’s Lunar Reconnaissance Orbiter slewed to allow LRO Camera (LROC) to acquire this magnificent view revealing Saturn and its rings.
NASA’s Lunar Reconnaissance Orbiter slewed to allow LRO Camera (LROC) to acquire this magnificent view revealing Saturn and its rings.
NASA/GSFC/Arizona State Universi

New Horizons: In its second extended mission, New Horizons will continue to explore the distant solar system. Previously, New Horizons flew past Pluto in 2015 and the Kuiper belt object Arrokoth in 2019. NASA says that the spacecraft can potentially conduct multi-disciplinary observations of relevance to the solar system and NASA’s Heliophysics and Astrophysics Divisions.

Mars Odyssey: This mission will perform new thermal studies of rocks and ice below Mars’ surface, monitor the radiation environment, and continue its long-running climate monitoring campaign, NASA says. It also provides unique support for real-time data relays from other Mars spacecraft.

Mars Reconnaissance Orbiter: MRO will study the evolution of Mars’ surface, active geology, ices and atmosphere and climate. This is the sixth extended mission for MRO. It also will provide essential data relay service to other Mars missions.

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