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Spacewatch was founded in 1980 by Tom Gehrels and Robert S. McMillan, and is currently led by astronomer Melissa Brucker at the University of Arizona. Spacewatch uses several telescopes on Kitt Peak for follow-up observations of near-Earth objects. [3] The Spacewatch Project uses three telescopes of apertures 0.9-m, 1.8-m, and 2.3-m.
Optical and radar observations indicate that it is a water-rich object. [ 10 ] From light curve photometry in 1998, the object is measured to have a rotation period of only 10.7 minutes, which was considered to be one of the shortest sidereal days of any known Solar System object at the time; most asteroids with established rotational rates ...
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Cathie Wood, the founder of investment management firm Ark Invest, is known for her aggressive bets on disruptive technologies. Her flagship fund, the Ark Innovation ETF (ARKK), made headlines in ...
Water flow in the Arkansas River (as measured in central Kansas) has dropped from approximately 248 cubic feet per second (7.0 m 3 /s) average from 1944–1963 to 53 cubic feet per second (1.5 m 3 /s) average from 1984–2003, largely because of the pumping of groundwater for irrigation in eastern Colorado and western Kansas.
Barclays customers are experiencing intermittent errors with payments and transfers for a second day after serious IT problems that also affected the bank's app and online banking.
The Spring River is a 57-mile (92 km) [1] long river which flows through the U.S. states of Missouri and Arkansas. [4] [5] It consists of two branches, the South Fork of the Spring River and the Spring River proper. [6]
10199 Chariklo / ˈ k ær ə k l oʊ / is the largest confirmed centaur, a class of minor planet in the outer Solar System.It orbits the Sun between Saturn and Uranus, grazing the orbit of Uranus.