Best Crater

An ancient river delta gives Jezero Crater on Mars much of its scientific importance. Water once carried sediment into a lake within this impact crater, leaving deposits that record conditions after the crater formed. Associated with early Martian history and the Noachian period, Jezero allows resea...

Concentric mountain rings make Orientale one of the Moon's distinctive large impact basins. Located near the western limb, it is partly hidden from Earth and is more fully revealed by spacecraft observations. The overall basin spans roughly 930 kilometers, far more than the 120 kilometers stated in...

Spread across the Moon's farside, the South Pole-Aitken Basin is an enormous ancient impact basin roughly 2,500 kilometers across. It is among the largest known impact structures in the solar system, but describing it as the largest known crater anywhere is too definite. Its name links the lunar sou...

Tycho is a large impact crater located on the Moon’s nearside. It stands out due to its expansive ray system, a bright, radiating pattern formed by ejected material during the initial impact. This crater, named after astronomer Tycho Brahe, offers scientists valuable insights into lunar geology and...

Buried beneath Mexico's Yucatan Peninsula and extending offshore, Chicxulub is a large impact structure associated with the asteroid strike at the end of the Cretaceous. Its significance comes from the connection between that collision and the Cretaceous-Paleogene mass extinction, when roughly three...

Rheasilvia occupies a large part of the southern hemisphere of Vesta, an asteroid with a differentiated rocky interior. Approximately 500 kilometers across, the impact basin is remarkable for its size relative to Vesta itself. A prominent central mountain rises inside it, providing a visible record...

Inside Gale Crater on Mars, the layered mountain Aeolis Mons, also called Mount Sharp, rises from the crater floor. The surrounding impact structure preserves a long geological record rather than only the moment of its formation. Gale dates to the early history of Mars, around the transition between...

Mare Imbrium occupies a broad impact basin on the Moon's nearside and forms one of the large dark areas visible from Earth. A major collision created the basin approximately 3.85 billion years ago. Later volcanic activity filled much of its interior with basaltic lava, producing the mare, or lunar p...

The Vredefort Dome is a massive impact crater formed approximately 2.03 billion years ago during Earth’s Precambrian era. It represents one of the oldest and largest confirmed impact structures globally. Located in South Africa, its immense size—over 300 kilometers across—highlights the violent even...

Herschel is a large impact crater prominently located on Mimas, one of Saturn’s moons. The crater represents an ancient collision that profoundly shaped the moon's surface. It accounts for approximately one-third of Mimas’ diameter, creating its recognizable, star-like appearance. Scientists study H...

Barringer Meteor Crater is a well-preserved impact crater located in Winslow, Arizona. Formed by a meteorite approximately 50,000 years ago, it represents one of the best examples of a preserved impact site on Earth. The crater’s size and clarity make it valuable for geological study and provides an...

Caloris Basin is a gigantic impact crater located on Mercury’s surface. It represents one of the most significant geological events in the planet's early history, formed approximately 3.8 billion years ago when a massive asteroid struck. The basin measures roughly 1,550 kilometers across and exhibit...

Hellas Planitia is a colossal impact basin located on Mars’s surface. It represents the largest known crater in our solar system, measuring approximately 2300 kilometers across and reaching a depth of 7000 meters. This Noachian-era feature provides scientists with valuable insights into early Martia...

Tsiolkovskiy is a large impact crater located on the far side of the Moon. Its defining feature is a 180-kilometer diameter basin filled with dark basaltic lava flows. This crater provides scientists with valuable data regarding early solar system impacts and lunar geology. It’s primarily studied by...

Hanauma Bay Nature Preserve is a sheltered marine site on the southeastern coast of Oʻahu, formed in a volcanic crater open to the sea. Hawaiʻi designated its waters as the state’s first Marine Life Conservation District in October 1967, prohibiting the taking or removal of marine life and other mar...

Asgard is a substantial impact basin located on Jupiter’s moon Callisto. It represents one of the largest ancient features on the satellite's surface. The basin’s prominent central palimpsest and extensive multi-ring structure—reaching approximately 1700 kilometers in diameter—offer valuable insight...

Clavius is a substantial impact crater located on the southern hemisphere of the Moon. It measures approximately 225 kilometers in diameter making it one of the largest features formed by impacts on the lunar surface. The crater’s interior displays a prominent series of smaller craters, a characteri...

The Manicouagan Crater is a massive impact structure in Quebec, Canada dating back to the Triassic period. Its exceptional size—approximately 130 kilometers across—makes it one of the largest known impact craters on Earth. Scientists study it to understand ancient impacts and their effects on planet...

Poás Crater Fumaroles are gas vents beside Laguna Caliente in Costa Rica, one of the world's most acidic volcanic lakes and a focus of volcano monitoring.

Haleakala National Park encompasses the summit of the dormant Haleakala volcano on the island of Maui. Designated a national park in 1961, it preserves unique volcanic landscapes and the adjacent Kipahulu area’s diverse coastal ecosystems. The park is primarily for visitors interested in geology, as...

Aristarchus is a medium-sized impact crater located on the Moon’s near side. It stands out as the brightest area because of abundant, fresh material ejected during its formation. This reflective debris was observed by early astronomers and contributed to theories about the solar system's structure....

Schrödinger is a substantial impact crater situated on the Moon’s southern polar region. Its significance stems from its youth within the Schrödingerian period of lunar formation. The crater's large size and complex multi-ring structure make it a valuable target for scientific study. Researchers inv...

Pingualuit is a small impact crater located in eastern Canada. Formed during the Pleistocene epoch, it represents one of the youngest confirmed impact craters on Earth. Its notable preservation offers scientists valuable insights into early impact events and planetary formation processes. Geologists...

Waimangu Volcanic Rift Valley offers a rare glimpse into New Zealand’s geothermal activity. Formed by the devastating 1886 Tarawera eruption, it showcases one of the world's youngest volcanic landscapes. The valley features active hot springs, steaming craters, and unique geological formations. It i...

Poás Fumaroles are active vents within the caldera of Costa Rica’s Poás Volcano. These fumaroles release significant amounts of sulfur dioxide and other gases due to geothermal activity. The resulting acidic conditions contribute to the unique chemistry of the volcano's crater lake. Scientists, volc...

Odysseus is a substantial impact crater on Saturn’s moon Tethys. It measures approximately 400 kilometers across, ranking as one of the largest craters relative to its parent body among all solar system objects. The crater's size and ancient origin make it significant for planetary scientists studyi...

Argyre Planitia is a substantial impact basin located within Mars’ southern highlands. This Noachian-era feature, formed approximately 3.9 billion years ago, exhibits prominent mountain ranges shaped by intense geological activity following the Late Heavy Bombardment. The area represents an importan...

Theophilus is a large impact crater on the Moon’s inner nearside. Its significance lies in its exceptional preservation of a complex geological structure. The crater boasts a diameter of approximately 100 kilometers and features dramatically terraced walls rising from a central peak. Scientists stud...

The Sudbury Basin is a massive impact crater formed approximately 1.85 billion years ago in present-day Canada. It represents one of Earth’s oldest and largest known impact structures. The basin's distinctive nickel-iron sulfide deposits are exceptionally valuable for studying the early evolution of...