Smart News Keeping you current Amateur Astronomers Capture an Asteroid or Comet Colliding With Jupiter The object recently exploded in the atmosphere of the solar system’s largest planet. The American Astronomical Society (AAS), established in 1899 and based in Washington, DC, is the major organization of professional astronomers in North America.

What is believed to be the origin of the asteroids? A.) Asteroids are believed to be meteorites trapped in orbit because of the gravitational influence of nearby Jupiter and mars b.) Asteroids are believed to be leftover matter from the early solar system that never became part of the large body becausae of their irregular shapes c.) Asteroids are believed to be leftover matter from the early solar system that never became part of the large body because of the gravitational influence of nearby Jupiter d.) Asteroids are believed to be remnants of a planet torn apart because of the gravitational influence of nearby Jupiter. Which statement below correctly identifies the differences and similarities between planets, dwarf planets, and planetary satellites? A.) Dwarf planets and planets are approximately the same size and shape. However, only planets orbit the sun, while dwarf planets and satellites do not.

Both planets and dwarf planets can have satellites b.) Dwarf planets are much smaller than planets. Planets and dwarf planets are spherical in shape, but only planets orbit the sun. Neither dwarf planets or satellites orbit the sun. Only planets can have satellites c.) Dwarf planets are much smaller than planets. Planets and dwarf planets are spherical in shape and orbit the sun, but satellites do not orbit the sun. Only planets can have satellites d.) Dwarf planets are much smaller than planets. Planets and dwarf planets are spherical in shape and orbit the sun, but satellites do not orbit the sun.

Both planets and dwarf planets can have satellites e.) none of the above.

One winter night in 1969, at an observatory atop Kitt Peak in Arizona, Michael Disney had a funny thought. As he peered into a huge, superluminous galaxy, he wondered: What if an alien astronomer there were staring right back? At the eyepiece of its own telescope, the intelligent extraterrestrial might likewise be ogling Disney’s smaller, fainter home galaxy, the Milky Way.

Then another thought cut through the whimsy. The young Welsh astronomer realized the alien had no chance of seeing the Milky Way, let alone the universe’s oodles of dimmer galaxies. Overwhelmed by the glare of all the stars stuffed into its resident galaxy, the alien would unknowingly be blinded to most of the cosmos. Disney wondered if we might be similarly deceived, awash in the inescapable glow of our own surroundings. “It occurred to me there could be a whole universe up there of hidden galaxies, just a little dimmer than those we can detect from Earth,” says Disney, an emeritus professor at Cardiff University in Wales.

Since that revelation in the desert nearly a half-century ago, Disney, now 80, has searched for a shadowy galactic realm. His hunch gained momentum in the 1980s and 1990s, but at the turn of the century, the trail ran cold. Disheartened and defeated, Disney relinquished the hunt. But recently, serendipitous sightings and new technology have reinvigorated the concept of a hidden cosmos. “Most of the universe is likely undiscovered,” says Greg Bothun, an astrophysicist at the University of Oregon who has long studied faint galaxies. The emerging population of dim galaxies likely outnumbers, and is strikingly different from, the typical bright galaxies we know and love, challenging our conventional theories of galaxy formation and evolution. Download lagu acha septriasa sampai menutup mata cover gitar.