Decision time? Check out our latest product comparisons

Astronomy

A multiwavelength composite image of supernova remnant IC 443, known as the Jellyfish Nebu...

The study of data collected by NASA's Fermi Gamma-ray Space Telescope has revealed that cosmic rays, some of the fastest traveling particles in the universe, are produced by supernovae. A separate study by the European Southern Observatory (ESO) has made similar findings, largely corroborating the Fermi results.  Read More

The Moon and Jupiter as they might appear in a small telescope (Photo: Gregory H. Revara, ...

Owners of small telescopes, rejoice! For that matter, on the night of January 21 everyone else can also enjoy the sight of Jupiter and the Moon at nearly the same position on the celestial sphere. Here's our advice on how best to observe this – the closest approach of the Moon and Jupiter until 2026.  Read More

Hubble Ultra Deep Field, showing thousands of galaxies back to a time only a few hundred m...

It is dangerous to bet against Einstein. Cosmological research shows that the rate at which the Universe expands is increasing, rather than decreasing as was previously thought. The concept of "dark energy" with a negative pressure was introduced to describe this acceleration. Now measurements of the proton to electron mass ratio (PEMR) over the past seven billion years strongly suggest that the models of dark energy are far more contrived in explaining accelerating expansion than is Einstein's self-proclaimed "biggest blunder" – the cosmological constant.  Read More

An asteroid passing close to Earth next month will provide stargazers with a rare viewing ...

Asteroid 2012 DA14 is about 40 meters (131 ft) in size, has a mass of 130,000 tons, is traveling relative to the Earth at a speed of some 6.3 km/s (14,100 mph) ... and will miss us by less than 32,000 km (20,000 miles) on February 15. If it did hit the Earth, the result would be a huge explosion yielding about 2.5 megatons, but Asteroid 2012 DA14 will not hit our planet in 2013, and probably never will. Despite the lack of a sensational scenario, this close call still warrants our attention – it will allow astronomers to learn a good deal about asteroids, and represents one of the few chances for ordinary folks to see a asteroid pass really close to Earth.  Read More

Spiral galaxy NGC 6872 is some five times the size of the Milky Way

A new study has led to the classification of NGC 6872 as the largest known spiral galaxy. The galaxy measures some 522,000 light-years across and resides 212 million light-years from earth. The stellar system exists in close proximity to the small disk galaxy IC 4970, which is thought to have recently collided with the larger system.  Read More

An artist's conception of the HD142527 system, with gas streamers being pulled towards the...

Observations made with the Atacama Large Millimeter/Submillimeter Array (ALMA) in northern Chile, which is scheduled for completion this year, have solved a longstanding mystery in solar system formation. They showed how protoplanets forming around a young star can use their own gravitational pull to slingshot matter in the direction of their host star, fueling its growth.  Read More

Gizmag's top five astronomical targets for small telescopes (Photo: Shutterstock)

If you received a telescope for Christmas, or bought one for your kids, your adventures in amateur astronomy are just beginning. Astronomy is the art and science of actually looking at the heavens and even a small telescope will let you find a host of celestial wonders. So where do you begin? Here are our suggestions for five of the most rewarding and spectacular objects with which to start your adventure in amateur astronomy ... plus some important tips on using a telescope.  Read More

Artist's conception of a protostar pulling interstellar gas onto a rotating protoplanetary...

The Sun is a bit over 4.5 billion years old, leading many to think of all stars as billions of years in age. Astronomers have now demonstrated that isn't always the case. Using high-resolution millimeter and submillimeter imaging telescope arrays, John Tobin of the National Radio Astronomy Observatory (NRAO) and his collaborators have now discovered an infant star whose age is measured in thousands, rather than billions, of years. While at present the protostar has only about a fifth of the Sun's mass, projections point to the eventual formation of a stellar system broadly similar to our Sun and its planets.  Read More

The newly inaugurated Murchison Widefield Array (MWA) telescope will act as an early warni...

After a long eight-year wait, the building of Australia's Murchison Widefield Array (MWA) telescope has finally reached completion. The radio telescope's first major task will be to investigate the Sun to provide earlier warnings of solar storms that, if left unchecked, could fry satellites and power grids across the globe. The telescope will also be sued to scout the sky for the earliest, most distant galaxies ever detected in an attempt to resolve unanswered questions on the origins of the Universe.  Read More

The galaxy NGC 1277 as photographed by the Hubble Space Telescope

Astronomers from the University of Texas at Austin have measured the second-largest black hole ever discovered. It takes up some 14 percent of the galaxy's mass and may lead to an overhaul of theories regarding the formation and evolution of black holes.  Read More

Looking for something? Search our 29,044 articles