| Hottah Lake | |
|---|---|
 This image shows Great Bear Lake and the surrounding region. The much smaller Hottah Lake is seen here as the largest body of water lying to the south-east of Great Bear Lake | |
  Hottah Lake | |
 | |
| Location | Northwest Territories |
| Coordinates | 65°05′45.1″N118°29′14.6″W / 65.095861°N 118.487389°W [1] |
| Basin countries | Canada |
| Surface area | 918 km2 (354 sq mi) |
| Surface elevation | 180 m (590 ft) |
| References | [2] |
Hottah Lake is the sixth largest lake in the Northwest Territories, Canada. [3]
On 8 November 1972, a medical evacuation aircraft piloted by Marten Hartwell crashed on a hillside near the lake. Hartwell broke both legs while the nurse, Judy Hill, and a pregnant Inuk woman named Neemee Nulliayok died. David Pisurayak Kootook also survived the crash but died after 20 days. Kootook was instrumental in the pair's survival but unlike Hartwell would not eat the flesh of the dead nurse. [4]
When the Mars Curiosity rover discovered solid evidence of an ancient streambed on Mars from a pile of cemented smooth rocks (conglomerates), the project managers named one of the two rock outcrop sites Hottah (the other is named Link) after the Lake. [5] [6]
A pebble is a clast of rock with a particle size of 4–64 mm (0.16–2.52 in) based on the Udden-Wentworth scale of sedimentology. Pebbles are generally considered larger than granules and smaller than cobbles. A rock made predominantly of pebbles is termed a conglomerate. Pebble tools are among the earliest known man-made artifacts, dating from the Palaeolithic period of human history.
Endurance is an impact crater lying situated within the Margaritifer Sinus quadrangle (MC-19) region of the planet Mars. This crater was visited by the Opportunity rover from May until December 2004. Mission scientists named the crater after the ship Endurance that sailed to the Antarctic through the Weddell Sea during the ill-fated 1914-1917 Imperial Trans-Antarctic Expedition, considered to be the last expedition of the Heroic Age of Antarctic Exploration organized by Ernest Shackleton.
Eagle is a 22-metre long impact crater located on the Meridiani Planum extraterrestrial plain, situated within the Margaritifer Sinus quadrangle (MC-19) portion of the planet Mars. The Opportunity rover came to rest inside Eagle crater when it landed in 2004. Scientists were delighted that the rover landed there, as the crater contains rocky outcroppings that helped prove that Meridiani was once an ocean floor.
Marten Hartwell was a German-Canadian bush pilot in the Canadian Arctic. On November 8, 1972, the plane that Hartwell was flying on a medical evacuation crashed. One passenger was killed on impact, another died shortly after, and the pilot had two broken ankles and could not walk. One passenger, a boy, David Pisurayak Kootook, survived the initial crash along with Hartwell but died after 23 days. The pilot was rescued after 31 days. Since the pilot was injured and unable to obtain local food, and emergency rations had run out, the pilot was forced to consume flesh from one of the dead passengers. At the time of his death he lived at Black River, Kings, Nova Scotia.
Jezero is a crater on Mars in the Syrtis Major quadrangle, about 45.0 km (28.0 mi) in diameter. Thought to have once been flooded with water, the crater contains a fan-delta deposit rich in clays. The lake in the crater was present when valley networks were forming on Mars. Besides having a delta, the crater shows point bars and inverted channels. From a study of the delta and channels, it was concluded that the lake inside the crater probably formed during a period in which there was continual surface runoff.
Gale is a crater, and probable dry lake, at 5.4°S 137.8°E in the northwestern part of the Aeolis quadrangle on Mars. It is 154 km (96 mi) in diameter and estimated to be about 3.5–3.8 billion years old. The crater was named after Walter Frederick Gale, an amateur astronomer from Sydney, Australia, who observed Mars in the late 19th century. Mount Sharp is a mountain in the center of Gale and rises 5.5 km (18,000 ft) high. Aeolis Palus is the plain between the northern wall of Gale and the northern foothills of Aeolis Mons. Peace Vallis, a nearby outflow channel, 'flows' down from the hills to the Aeolis Palus below and seems to have been carved by flowing water. Several lines of evidence suggest that a lake existed inside Gale shortly after the formation of the crater.
The Aeolis quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Aeolis quadrangle is also referred to as MC-23 . The Aeolis quadrangle covers 180° to 225° W and 0° to 30° south on Mars, and contains parts of the regions Elysium Planitia and Terra Cimmeria. A small part of the Medusae Fossae Formation lies in this quadrangle.
The composition of Mars covers the branch of the geology of Mars that describes the make-up of the planet Mars.
Aeolis Palus is a plain between the northern wall of Gale crater and the northern foothills of Aeolis Mons on Mars. It is located at 4.47°S 137.42°E.
The Mars Science Laboratory and its rover, Curiosity, were launched from Earth on November 26, 2011. As of September 30, 2023, Curiosity has been on the planet Mars for 3963 sols since landing on August 6, 2012. (See Current status.)
Glenelg, Mars is a location on Mars near the Mars Science Laboratory landing site in Gale Crater marked by a natural intersection of three kinds of terrain.
Bradbury Landing is the August 6, 2012, landing site within Gale crater on planet Mars of the Mars Science Laboratory (MSL) Curiosity rover. On August 22, 2012, on what would have been his 92nd birthday, NASA named the site for author Ray Bradbury, who had died on June 5, 2012. The coordinates of the landing site on Mars are: 4.5895°S 137.4417°E.
Peace Vallis is an ancient stream valley on the northern rim of Gale Crater on the planet Mars. It is notable for its associated alluvial fan which lies near the Mars Science Laboratory Curiosity landing site. The valley and alluvial fan provide evidence for geologically recent (Amazonian-aged) fluvial activity and sustained water flow on Mars. Recent high-resolution orbital images of Peace Vallis and its watershed also suggest that at least one glacial episode affected Gale crater. All of this evidence has implications for the history of water on Mars and the planet's long-term habitability. Understanding Peace Vallis and its fan also provides geologic context for the rocks observed on the ground by the Curiosity rover.
Hottah is a rock outcrop on the surface of Aeolis Palus, between Peace Vallis and Aeolis Mons, in Gale crater on the planet Mars.
Link is a rock outcrop on the surface of Aeolis Palus, between Peace Vallis and Aeolis Mons, in Gale crater on the planet Mars. The outcrop was encountered by the Curiosity rover on the way from Bradbury Landing to Glenelg Intrigue on September 2, 2012, and was named after a significant rock formation in the Northwest Territories of Canada. The "approximate" site coordinates are: 4.59°S 137.44°E.
Goulburn, also known as Goulburn Scour, is a rock outcrop on the surface of Aeolis Palus, between Peace Vallis and Aeolis Mons, in Gale crater on the planet Mars. The outcrop was encountered by the Curiosity rover on landing at the Bradbury Landing on August 6, 2012 and is named after a two-billion year-old sequence of rocks in Northern Canada. The "approximate" site coordinates are: 4.59°S 137.44°E.
Yellowknife Bay is a geologic formation in Gale Crater on the planet Mars. NASA's Mars Science Laboratory rover, named Curiosity, arrived at the low lying depression on December 17, 2012, 125 sols, or Martian days, into its 668-sol planned mission on the planet. Primary mission goals of the Mars Science Laboratory were to assess the potential habitability of the planet and whether or not the Martian environment is, or has ever been, capable of supporting life.
David Pisurayak Kootook, MSC, was an Inuit boy from Spence Bay, Northwest Territories who helped save the life of bush pilot Marten Hartwell after a crash in the Canadian Arctic. Kootook died after 23 days, and was posthumously awarded the Meritorious Service Cross.
The following outline is provided as an overview of and topical guide to Mars:
