10 most difficult space riddlesSpace quiz
Anita and Arabella, sent to space in 1973 were..?
common fruit flies
common Cross spiders
Between July 28 to September 25, 1973, NASA sent two common Cross spiders into space to see what effects zero gravity would have on their web making. The idea began when a Lexington, Mass high school student name Judith Miles proposed the test as part of student focused Skylab 3 experiment.
What is the name of the hypothetical last stage of the evolution of Sun-sized stars?
A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently that it no longer emits significant heat or light
A star that pulsates radially, changing both diameter and temperature is called a ...
A Cepheid variable is a type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude. A strong direct relationship between a Cepheid variable's luminosity and pulsation period established Cepheids as important indicators of cosmic benchmarks for scaling galactic and extragalactic distances.
What is the second brightest star in the night time sky, after Sirius?
Canopus is the brightest star in the southern constellation of Carina, and the second brightest star in the night time sky, after Sirius. Its name is generally considered to originate from the mythological Canopus, who was a navigator for Menelaus, king of Sparta.
What is formed in H II areas?
HII region is typically a cloud of partially ionized gas in which star formation has recently taken place, with a size ranging from one to hundreds of light years. H II regions may give birth to thousands of stars over a period of several million years. The Orion Nebula, now known to be an H II region, was observed in 1610 by Nicolas de Peiresc by telescope, the first such object discovered.
Which rover was the first to explore Mars?
Sojourner was the first Mars rover. It was much smaller than Curiosity, whose wheel is about the size of the whole Sojourner. It landed on July 4, 1997 as part of the Mars Pathfinder mission on Mars's Ares Vallis and remained in contact with Earth till September 27, 1997.
How old was Kathryn Gray when she Supernova SN 2010lt discovered?
SN 2010lt is a supernova located in the galaxy UGC 3378 in Camelopardalis. It was discovered by amateur astronomers Kathryn Gray, her father Paul Gray, of Fredericton, New Brunswick, Canada and David J. Lane of Stillwater Lake, Nova Scotia, Canada. Upon discovery, Kathryn Aurora Gray became the youngest person to ever discover a supernova, being 10 years old when she did so. The previous record was held by the 14-year-old Caroline Moore.
Which of the following cosmic structures is the largest?
Galaxy filaments are the largest known structures in the universe. They group galaxy superclusters, which in turn are formed by cluster composed of galaxies. Hercules–Corona Borealis Great Wall is considered the largest known structure of Universe. It is estimated to span 10 billions light years.
What astronomical object emerges sometimes from supernova instead of a black hole?
only a black hole can emerge from supernova
A magnetar is a type of neutron star with an extremely powerful magnetic field. The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays. As of March 2016, only 23 magnetars are known, with six more candidates awaiting confirmation.