What is the oldest thing in the universe?
GRB 090423 was also the oldest known object in the Universe, apart from the methuselah star. As the light from the burst took approximately 13 billion years to reach Earth.
How many suns are in the universe?
Is there only 1 sun in the universe? Explanation: There are billions of stars larger or smaller than SUn in the Galaxy..But we call them stars only.. So we have only one Sun. How big was asteroid that killed dinosaurs? The asteroid was about 7.5 miles (12 kilometers) in diameter and was traveling about 27,000 mph (43,000 km/h) when it created a 124-mile-wide (200 km) scar on the planet's surface, said Sean Gulick, a research professor at the University of Texas Institute for Geophysics, who led the study.
Moreover, is there a comet coming to earth?
The comet is designated C/2017 K2 (PanSTARRS). It was between the orbits of Saturn and Uranus when they first saw it, but will finally make its way into the inner solar system this year. It'll be closest to Earth on. Keeping this in consideration, will an asteroid hit earth? Currently none are predicted (the single highest probability impact currently listed is ~7 m asteroid 2010 RF12, which is due to pass earth in September 2095 with only a 5% predicted chance of impacting). Currently prediction is mainly based on cataloging asteroids years before they are due to impact.
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