Popular Science articles about Astronomy & Space

<p>This collage shows NASA/ESA Hubble Space Telescope images of six different galaxy clusters. The clusters were observed in a study of how dark matter in clusters of galaxies behaves when the clusters collide. 72 large cluster collisions were studied in total.

<p>The clusters shown here are, from left to right and top to bottom: MACS J0416.1-2403, MACS J0152.5-2852, MACS J0717.5+3745, Abell 370, Abell 2744 and ZwCl 1358+62.

NASA satellites catch 'growth spurt' from newborn protostar

Infrared images from instruments at Kitt Peak National Observatory (KPNO, left) and NASA's Spitzer Space Telescope document the outburst of HOPS 383, a young protostar in the Orion star-formation complex. Background: A wide view of the region taken from a Spitzer four-color infrared mosaic.Using data from orbiting observatories, including NASA's Spitzer Space Telescope, and ground-based facilities, an international team of astronomers has discovered an outburst from a star thought to be in the...

Wandering Jupiter accounts for our unusual solar system

Jupiter may have swept through the early solar system like a wrecking ball, destroying a first generation of inner planets before retreating into its current orbit, according to a new...

Colorful life-form catalog will help discern if we're alone

While looking for life on planets beyond our own solar system, a group of international scientists has created a colorful catalog containing reflection signatures of Earth life forms that might...

Scientists fly kites on Earth to study Mars

Stephen Scheidt is flying a kite over the December 1974 flow in Hawaii.Scientists of the University of Arizona's Lunar and Planetary Laboratory have taken to kites that they fly above lava flows blanketing the Hawaiian landscape to unravel the past mysteries that...

NASA spacecraft in Earth's orbit, preparing to study magnetic reconnection

This is an artist's concept of the MMS observatory fleet with rainbow magnetic lines.Following a successful launch at 10:44 p.m. EDT Thursday, NASA's four Magnetospheric Multiscale (MMS) spacecraft are positioned in Earth's orbit to begin the first space mission dedicated to the study...

Queen's astronomers discover fastest ever unbound star in our galaxy

A fast-moving unbound star discovered by astronomers at Queen's University Belfast has broken the galactic speed record.A fast-moving unbound star discovered by astronomers at Queen's University Belfast has broken the galactic speed record.

NASA's Hubble discovers four images of same supernova split by cosmic lens

The image shows the galaxy's location within a hefty cluster of galaxies called MACS J1149.6+2223. Arrows (inset) point to the multiple copies of Supernova Refsdal. The four images were spotted on Nov. 11, 2014.Astronomers using NASA's Hubble Space Telescope have spotted for the first time a distant supernova split into four images. The multiple images of the exploding star are caused by the...

Astronomers find dust in the early universe

This image, taken by the Hubble Space Telescope, shows a part of the galaxy cluster, Abell 1689, whose gravitational field amplifies the distant galaxy behind it. The distant dust-filled galaxy in zoom in the box.Dust plays an extremely important role in the universe -- both in the formation of planets and new stars. But dust was not there from the beginning and the earliest...

SOHO sees something new near the sun

An unusual comet skimmed past the sun on Feb 18-21, 2015, as captured by the European Space Agency (ESA) and NASA's Solar and Heliospheric Observatory, or SOHO.

A new view of the solar system: Astrophysical jets driven by the sun

The yellow shape in this figure is the heliopause, the boundary between the heliosphere and the local interstellar medium. The sun sits at the center of this large bubble, but is too small to be seen in this image. The gray lines are the solar magnetic field lines and the red lines are the interstellar magnetic field.As the sun skims through the galaxy, it flings out charged particles in a stream of plasma called the solar wind. The solar wind creates a bubble, known as the...

Unexplained warm layer discovered in Venus' atmosphere

These are temperatures on the night side of Venus at altitudes of 90 and 100 km.A group of Russian, European and American scientists have found a warm layer in Venus' atmosphere, the nature of which is still unknown. The researchers made the discovery when compiling...

Colliding stars explain enigmatic 17th century explosion

This chart of the position of a nova (marked in red) that appeared in the year 1670 was recorded by the famous astronomer Hevelius and was published by the Royal Society in England in their journal <i>Philosophical Transactions</i>.New observations made with APEX and other telescopes reveal that the star that European astronomers saw appear in the sky in 1670 was not a nova, but a much rarer,...

Planets in the habitable zone around most stars, calculate researchers

The illustration shows the habitable zone for different types of stars. The distance to the habitable zone is dependent on how big and bright the star is. The green area is the habitable zone, where liquid water can exist on a planet's surface. The red area is too hot for liquid water on the planetary surface and the blue area is too cold for liquid water on the planetary surface.Astronomers have discovered thousands of exoplanets in our galaxy, the Milky Way, using the Kepler satellite and many of them have multiple planets orbiting the host star. By analysing these...

A second minor planet may possess Saturn-like rings

There are only five bodies in our solar system that are known to bear rings. The most obvious is the planet Saturn; to a lesser extent, rings of gas and...

NASA's Hubble observations suggest underground ocean on Jupiter's largest moon

In this artist's concept, the moon Ganymede orbits the giant planet Jupiter. NASA's Hubble Space Telescope observed aurorae on the moon generated by Ganymede's magnetic fields. A saline ocean under the moon's icy crust best explains shifting in the auroral belts measured by Hubble.NASA's Hubble Space Telescope has the best evidence yet for an underground saltwater ocean on Ganymede, Jupiter's largest moon. The subterranean ocean is thought to have more water than all...

The corrugated galaxy -- Milky Way may be much larger than previously estimated

The Milky Way galaxy is at least 50 percent larger than is commonly estimated, according to new findings that reveal that the galactic disk is contoured into several concentric ripples.The Milky Way galaxy is at least 50 percent larger than is commonly estimated, according to new findings that reveal that the galactic disk is contoured into several concentric ripples....

Venus, if you will, as seen in radar with the GBT

This is a projection of the radar data of Venus collected in 2012. Striking surface features -- like mountains and ridges -- are easily seen. The black diagonal band at the center represents areas too close to the Doppler 'equator' to obtain well-resolved image data.From earthbound optical telescopes, the surface of Venus is shrouded beneath thick clouds made mostly of carbon dioxide. To penetrate this veil, probes like NASA's Magellan spacecraft use radar to...

Galactic 'rain' could be key to star formation

Some of the galaxies in our universe are veritable star nurseries. For example, our own Milky Way produces, on average, at least one new star every year. Others went barren...

Monster black hole discovered at cosmic dawn

This is an artist's impression of a quasar with a supermassive black hole in the distant universe.Scientists have discovered the brightest quasar in the early universe, powered by the most massive black hole yet known at that time. The international team led by astronomers from Peking...

Does dark matter cause mass extinctions and geologic upheavals?

Research by New York University Biology Professor Michael Rampino concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on...

Dark matter guides growth of supermassive black holes

Every massive galaxy has a black hole at its center, and the heftier the galaxy, the bigger its black hole. But why are the two related? After all, the black...

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