Ten Spacecraft That Approached Asteroids and Comets Directly

When reviewing ‘Galileo’, the first thing to check in this list is the design more than the records. This spacecraft opened the door to asteroid exploration by making close observations of Gaspra and Ida on its way to Jupiter. Launched by NASA on October 18, 1989, it targeted Gaspra and Ida as a flyby probe. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘Galileo’ that is not revealed by its name alone.

The most interesting aspect of ‘Galileo’ is how it added an asteroid flyby to its main mission path. When viewing ‘Galileo,’ it’s beneficial to see how power and mass were allocated to different instruments rather than just the size of the gas. The mission status of ‘Galileo’ is ‘Mission Completed.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes evident that ‘Galileo’ was not just a record holder but a tool that solved specific problems.

Following the flow of the list, it’s worthwhile to consider ‘NEAR Shoemaker’ next. Comparing the flyby probe of ‘Galileo’ with the asteroid orbiter of ‘NEAR Shoemaker’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than just a single invention. The official page of ‘Galileo’ provides more detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When examining ‘NEAR Shoemaker’, the point of departure for understanding this spacecraft is the conditions required by its mission. This spacecraft orbited asteroid Eros and achieved a surface landing by the end of its mission. Launched by NASA on February 17, 1996, it targeted Eros as an asteroid orbiter. Considering these four pieces of information together allows you to distinguish the historical context and actual mission scope of ‘NEAR Shoemaker’ that is not revealed by its name alone.

The most interesting aspect of ‘NEAR Shoemaker’ is its technology that enabled stable orbital flight around an irregular small body. When viewing ‘NEAR Shoemaker’, connecting the structures in the photos with the list of onboard instruments helps accurately interpret the mission objectives. The mission status of ‘NEAR Shoemaker’ is ‘Mission Completed.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes clear that ‘NEAR Shoemaker’ was not just a record holder but a tool that addressed specific problems.

Following the flow of the list, it’s worthwhile to look into ‘Stardust’ next. Comparing the asteroid orbiter of ‘NEAR Shoemaker’ with the comet sample return mission of ‘Stardust’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than a single invention. The official page of ‘NEAR Shoemaker’ provides more detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When examining ‘Stardust’, an aspect that can be easily overlooked when considering just the achievements relates to the spacecraft's selection. This spacecraft was the first to collect comet dust and bring it back to Earth. Launched by NASA on February 7, 1999, it targeted Comet Wild 2 as a sample return mission. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘Stardust’ that isn’t revealed by its name alone.

The most interesting aspect of ‘Stardust’ is the method of capturing high-speed particles with minimal damage using aerogel. When viewing ‘Stardust’, it’s essential to compare how the information obtained varies as the observational position changes. The mission status of ‘Stardust’ is ‘Mission Completed.’ The completed spacecraft should be interpreted based on the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it can be seen that ‘Stardust’ was not just a record holder but a tool that solved specific problems.

Following the flow of the list, it’s worthwhile to consider ‘Deep Impact’ next. Comparing the comet sample return mission of ‘Stardust’ with the impactor/flyby of ‘Deep Impact’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than a single invention. The official page of ‘Stardust’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When examining ‘Deep Impact’, clear changes emerge when comparing generations based on the launch date. This spacecraft was designed to collide with a comet, revealing internal materials through observation. Launched by NASA on January 12, 2005, it targeted Comet Tempel 1 as an impactor/flyby mission. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘Deep Impact’ that is not revealed by its name alone.

The most interesting aspect of ‘Deep Impact’ is the experiment that investigated the composition below the surface using an artificial collision. When viewing ‘Deep Impact’, it is beneficial to locate the device maintaining posture towards the target and the arrangement of the communication system in the official images. The mission status of ‘Deep Impact’ is ‘Mission Completed.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it can be seen that ‘Deep Impact’ was not just a record holder but a tool that addressed specific problems.

Following the flow of the list, it’s worthwhile to consider ‘Dawn’ next. Comparing the impactor/flyby of ‘Deep Impact’ with the orbiters of ‘Dawn’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than just a single invention. The official page of ‘Deep Impact’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When reviewing ‘Dawn’, although the name is familiar, the actual roles are revealed when you look at the objectives and orbits together. This spacecraft successively entered the orbits of two different bodies, Vesta and Ceres. Launched by NASA on September 27, 2007, it targeted Vesta and Ceres as an asteroid/dwarf planet orbiter. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘Dawn’ that is not evident from its name alone.

The most interesting aspect of ‘Dawn’ is its ability to achieve the orbital insertion for both targets using ion engines. When you view ‘Dawn’, placing it alongside contemporaneous spacecraft shows the priorities in propulsion, power, and observational equipment. The mission status of ‘Dawn’ is ‘Mission Completed.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes evident that ‘Dawn’ was not just a record holder but a tool that solved specific problems.

Following the flow of the list, it’s worth looking into ‘OSIRIS-REx’ next. Comparing the asteroid/dwarf planet orbiter of ‘Dawn’ with the sample return mission of ‘OSIRIS-REx’ validates that various approaches to small bodies have been accumulated through multiple missions’ trial and error rather than a single invention. The official page of ‘Dawn’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When examining ‘OSIRIS-REx’, the pivotal moment of the mission began with the hardware tailored to its objectives. This spacecraft delivered samples from Bennu to Earth and will continue by exploring Apophis as OSIRIS-APEX. Launched by NASA on September 8, 2016, it targeted Bennu and Apophis as a sample return mission. By considering these four pieces of information together, you can identify the historical context and actual mission scope of ‘OSIRIS-REx’ that is not revealed by its name alone.

The most interesting aspect of ‘OSIRIS-REx’ is the method of collecting surface samples through brief contact, returning only the capsule. When viewing ‘OSIRIS-REx’, confirming the communication distance and mission duration first makes the reasons for the selection of antennas and power very clear. The mission status of ‘OSIRIS-REx’ is ‘Active Extended Mission.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes clear that ‘OSIRIS-REx’ was not just a record holder but a tool that addressed specific issues.

Following the list’s flow, it’s worth considering ‘Lucy’ next. Comparing the asteroid sample return mission of ‘OSIRIS-REx’ with the multi-asteroid flyby of ‘Lucy’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than a single invention. The official page of ‘OSIRIS-REx’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When reviewing ‘Lucy’, the questions that needed to be addressed at the time are embodied within the spacecraft. This spacecraft is designed to successively visit several Jupiter Trojan asteroids to investigate the diversity of early solar system materials. Launched by NASA on October 16, 2021, it targeted the Jupiter Trojan group as a multi-asteroid flyby mission. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘Lucy’ that isn’t revealed by its name alone.

The most fascinating aspect of ‘Lucy’ is its complex gravity-assist trajectory that connects multiple targets with one spacecraft. When viewing ‘Lucy’, if it is currently operational, also observe how the latest results differ from the initial objectives. The mission status of ‘Lucy’ is ‘Active Mission.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes clear that ‘Lucy’ was not just a record holder but a tool that solved particular problems.

Following the flow of the list, it’s worth looking into ‘DART’ next. Comparing the multi-asteroid flyby of ‘Lucy’ with the planetary defense impactor of ‘DART’ confirms that various approaches to small bodies have been accumulated through several missions’ trial and error instead of one single invention. The official page of ‘Lucy’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When reviewing ‘DART’, the design behind the observational results involves constraints on power and communication distributions. This spacecraft was the first to test planetary defense technology by impacting an asteroid’s moonlet to change its orbital period. Launched by NASA on November 24, 2021, it targeted Dimorphos as a planetary defense impactor mission. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘DART’ that isn’t revealed by its name alone.

The most interesting aspect of ‘DART’ is the kinetic impact experiment that causes a change in speed rather than mere observation. When looking at ‘DART’, follow not just the scenes of success but also the procedures that reduced risks when reading the mission data. The mission status of ‘DART’ is ‘Mission Completed.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes clear that ‘DART’ was not just a record holder but a tool that addressed specific problems.

Following the flow of the list, it’s worthwhile to consider ‘Psyche’ next. Comparing the planetary defense impactor of ‘DART’ with the asteroid orbiter of ‘Psyche’ validates that various approaches to small bodies have been accumulated through several missions’ trial and error rather than a single invention. The official page of ‘DART’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When examining ‘Psyche’, the distinctive features that differentiate it from similar spacecraft can be found in its mission trajectory. This spacecraft is in motion to investigate the metal-rich asteroid Psyche. Launched by NASA on October 13, 2023, it targets 16 Psyche as an asteroid orbiter. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘Psyche’ that is not revealed by its name alone.

The most interesting aspect of ‘Psyche’ is its approach of gradually increasing speed using solar electric propulsion toward distant objectives. When viewing ‘Psyche’, examining the order in which instruments are used after arrival at the target clarifies the design choices. The mission status of ‘Psyche’ is ‘Active and Cruising.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it becomes evident that ‘Psyche’ was not just a record holder but a tool that addressed specific problems.

Following the flow of the list, it’s worthwhile to investigate ‘New Horizons’ next. Comparing the asteroid orbiter of ‘Psyche’ with the Kuiper Belt flyby of ‘New Horizons’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than a single invention. The official page of ‘Psyche’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.

When reviewing ‘New Horizons’, its value lies in the standards left for future missions rather than just impressive records. This spacecraft conducted a close observation of the Kuiper Belt object Arrokoth after Pluto, showcasing the features of small celestial bodies. Launched by NASA on January 19, 2006, it targeted Arrokoth as a Kuiper Belt flyby mission. By considering these four pieces of information together, you can distinguish the historical context and actual mission scope of ‘New Horizons’ that isn’t revealed by its name alone.

The most fascinating aspect of ‘New Horizons’ is its autonomy in executing observation commands quickly without a pre-existing map. When viewing ‘New Horizons’, for completed missions, it is worthwhile to verify the last operational methods and the data left behind. The mission status of ‘New Horizons’ is ‘Extended Mission.’ For the completed spacecraft, you should read the remaining data and subsequent technologies, while for the operational spacecraft, focus on the tasks that have expanded from the initial plan. This way, it can be seen that ‘New Horizons’ was not just a record holder but a tool that addressed specific problems.

Following the flow of the list, it’s worthwhile to consider ‘Galileo’ next. Comparing the Kuiper Belt flyby of ‘New Horizons’ with the flyby probe of ‘Galileo’ confirms that various approaches to small bodies have accumulated through multiple missions’ trial and error rather than just a single invention. The official page of ‘New Horizons’ provides detailed information on launch details, mission progress, and onboard equipment, so it’s safest to check for updates when the date or status changes in ongoing missions.