Articles related to "Astronomer"

Amateur astronomer Anthony Wesley's discovery of an impact on Jupiter illustrates how amateurs can still make important contributions to the science of astronomy.

Astronomers used small telescopes to discover GJ 1214b, a super Earth type extra solar planet with lots of water.

Young people who want to pursue a career in astronomy can get the right preparation from a young age. Concentrate on math and science, and do well in all subjects.

In addition to visible light, astronomers study radio waves from the Sun, planets, stars, galaxies, and other celestial objects.

Dr. Helen Sawyer Hogg spent her life watching the skies through the lens of a telescope, searching for Globular Clusters, encouraging star-gazing and promoting astronomy

Hipparchus' precision and astronomical calculations led to his invention of trigonometry and discovery of precession, the compilation of the first Star Catalogue.

Many people interested in astronomy pursue it as a hobby. Amateur astronomers become quite knowledgeable about the night sky from their hobby. Here's how to get started.

Ptolemy was an ancient Greek scholar who originated the Ptolemaic system in astronomy and made important contributions to geography and optics.

Walt Whitman's sprawling eight-line poem showcases the poet's freewheeling style while dramatizing the wildly romantic world view portrayed in almost all of his poems.

The discovery of a comet led Mitchell to be the first woman member of the American Academy of Arts and Sciences in 1848.

Saturn has a well known easily observed spectacular ring system. The other Jovian planets, Uranus, Jupiter, and Neptune, also have ring systems.

Astronomers and biologists both frequently use the term evolution, but don't mean exactly the same thing.

Sailing between the planets using the light provided from the sun may become a valid method of space craft propulsion in the near future

Levi ben Gershon, or Gersonides, was a gifted scholar, advancing our understanding of the fields of mathematics, astronomy, and philosophy in the Middle Ages.

New observations of the Orion Nebula reveal a much busier star forming scene than previously considered.

In early April 2007 astronomers announced the discovery of water on a planet orbiting the star, HD 209458. How is it possible to detect water on an extrasolar planet?

Kepler's third law of planetary motion is a mathematical relation between orbital periods and distances. It allows astronomers to measure masses of celestial objects.

Identifying the star HDE226868 as the optical counterpart to the astronomical X-ray source, Cygnus X-1, was the first step in identifying it as a black hole.

Brief bio and discoveries of Edwin Hubble, who discovered more galaxies and that the universe expands; also known for Hubble's Law.

Brief biography of Tycho Brahe, Danish astronomer, who advanced the Copernican Theory but believed that the Earth was still the centre of the universe.

In the hunt for extrasolar planets the ultimate goal is to find an Earth-like planet. However this Earth-like planet may not turn out to look much like the Earth at all.

In addition to visible light, astronomers use ultraviolet, infrared, radio waves, X-rays and gamma rays to study planets, stars, galaxies, and other celestial objects.

A giant blob of gas named Himiko lies at the edge of the visible universe and keeps its true nature a secret.

Instead of optical telescopes, astronomers use antennas and computers to study the Universe at wavelengths invisible to the human eye. So, how does that work?

Beginning stargazers often want to learn the astronomical constellations. Advanced stargazers want to teach their kids or others some astronomy. These tools can help.

Which animated shorts rocked - or sucked - at the 2009 OIAF Shorts Competition 2? Find out here.

Brief biography of Benjamin Banneker, one of the first African American great thinkers.

Like sharks in the ocean millions of Black Holes wander the universe. And like those creatures the universe needs these galactic wanders to maintain stability.

Brief biography of Carl Friedrich Gauss, one of the greatest and most influential mathematicians in history. He made advances in number theory.

Carl Sagan (1934-1996) is probably best known for hosting the TV series Cosmos, but the famous scientist had a rich, lifelong career of popularizing science.

Until the Mt Palomar 200" telescope, Mt Wilson's Hooker 100" and the 60" were the world's largest telescopes, allowing Edwin Hubble to discover the expanding universe.

A tremendous blank spot free of galaxies, stars, dark matter or black holes has been discovered in the distant reaches of space.

Brief biography of Omar Khayyam, one of the world's best-known poets, in particular, for The Rubaiyat of Omar Khayyam.

With 80% of its surface covered with volcanoes or solidified lava flows, Venus is very tectonically active, but tectonics on Venus differ from plate tectonics on Earth.

Venus has over 1600 large volcanoes and many more smaller ones. Comparing the types of volcanoes found on Venus to Earth's volcanoes helps scientists understand both.

Owners of small telescopes often wonder what else they can view besides the Moon and planets. There is a lot to see up in the dark sky, if one knows where to look.

Herschel discovered 3 new nebulae, 8 new comets, and wrote 2 astronomical catalogues.

Measuring the mass of the unseen companion in a binary X-ray source, such as Cygnus X-1, tells us if it is a black hole or a neutron star.

Astronomers use high resolution spectroscopy and the Doppler effect to discover extrasolar planets, which are planets outside our solar system.

Gravitational lenses, predicted by Einstein's general relativity, provide an important experimental confirmation of this theory and help astronomers find dark matter.

Astronomers recently have discovered several planets orbiting the star Gliese 581in the constellation Libra. This article will discuss what's currently known.

Images of recent supernovae have enabled astronomers to identify the precursor stars of these explosions, overturning accepted theories of the evolution of massive stars.

Scientists and amateur astronomers measure the composition, luminosity, and velocity of stars, galaxies, and nebulae using a technique called spectroscopy.

Astronomers have calculated that there is a small chance that two neighbouring planets might bump into Earth, but not for a billion years.

Capturing the visible light spectrum through the Hubble telescope shows amazing images, but the Chandra X-ray telescope captures even more impressive images.

Astronomers have found more than 270 exoplanets. New technologies are increasing that number as the search for more Earth-like planets continues.

The first ever detection is made of an extrasolar planetary system with at least one solid, rocky world.

The planet Saturn, surrounded by its famous rings, is also surrounded by some of the most unique moons in the Solar System.

During World War II, Baade discovered that there were distinct stellar populations: The older Population II stars and Younger Population I stars.

SETI, or the Search for Extraterrestrial Intelligence, is the collective name for a number of on-going projects dedicated to the search for extraterrestrial life.