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10 February 2006 | ScienceNOW

Heat Wave of the Millennium

by Michael Schirber

New analysis finds Earth is warmer now than any time in the previous 1200 years

1 February 2006 | ScienceNOW

Jupiter's Icy Admirers

by Phil Berardelli

Comet duo may back up longstanding theory about the early history of the planets

27 January 2006 | ScienceNOW

Downsizing the "Tenth Planet"

by Robert Irion

Hubble Space Telescope reveals that distant body is barely bigger than Pluto

25 January 2006 | ScienceNOW

I Spy ... a Cold, Little Planet

by Richard A. Kerr

Astronomers spot icy world not much larger than Earth

11 January 2006 | ScienceNOW

A Hostile Birth

by Michael Schirber

Some planets may be forming in very hazardous environments

5 January 2006 | ScienceNOW

Charon's Shadow Illuminates Its True Nature

by Michael Schirber

Distant eclipse reveals size and makeup of Pluto's moon

13 December 2005 | ScienceNOW

Rovers That Walk on the Wild Side

by Christina Reed

Future planet explorers may use extendable legs instead of wheels

1 December 2005 | ScienceNOW

What's Mars Hiding?

by Govert Schilling

New radar observations probe beneath planet's surface

20 October 2005 | ScienceNOW

And the Meek Shall Inherit Some Earths

by Michael Schirber

Failed stars may succeed at planet building

9 September 2005 | ScienceNOW

Your Outdoor Adventure Guide to Titan

by Govert Schilling

New analysis of lander's data reveals demanding landscape

7 September 2005 | ScienceNOW

Martian Methane Mystery Solved?

by Govert Schilling

New theory suggests gas created by geochemical process, not life

6 September 2005 | ScienceNOW

Ring Riddles Baffle Saturn Scientists

by Govert Schilling

Structures are more complex and fickle than thought

3 August 2005 | ScienceNOW

The Moon Soaked Up Some Earth

by Kim Krieger

Lunar soil samples indicate gases from early Earth traveled to moon

22 July 2005 | ScienceNOW

What Caused the Martian Floods?

by Mason Inman

New research suggests mineral deposits released deluges that carved the planet's surface

21 July 2005 | ScienceNOW

A Martian Deep Freeze

by Kim Krieger

Meteorites suggest red planet has been frigid for billions of years

13 July 2005 | ScienceNOW

My Three Suns

by Govert Schilling

Newly-discovered planet basks in the light of three stars

5 July 2005 | ScienceNOW

Deep Impact Makes a Lasting Impression

by Richard A. Kerr

Speedy spacecraft blasts into comet Tempel 1 as planned

13 June 2005 | ScienceNOW

The Most Earthlike Exoplanet Yet

by Robert Irion

Astronomers find what could be a rocky world 15 light-years away

2 June 2005 | ScienceNOW

Comets: Solid as a Rock?

by Robert Irion

Narrow trails of castoff pebbles suggest comets are less icy than thought

1 June 2005 | ScienceNOW

White Dwarfs in a Death Spiral

by Robert Irion

Burned-out stars will crash in a chaos of gravitational waves

6 May 2005 | ScienceNOW

Mars Crash Site Identified?

by Robert Irion

Five-year-old photos may show the resting place of a doomed lander

4 May 2005 | ScienceNOW

Phoebe's Dark, Chilly Birth

by Robert Irion

Saturn's misfit moon may hail from the solar system's depths

7 April 2005 | ScienceNOW

Cosmic Dust Supports a Snowball Earth

by Richard A. Kerr

Iridium measurements indicate planet was frozen solid for 12 million years

25 February 2005 | ScienceNOW

Frozen Sea or Lava Field?

by Richard A. Kerr

New pictures from Mars ignite transatlantic debate

7 February 2005 | ScienceNOW

Solar System Lite

by Robert Irion

Objects not much larger than Jupiter may host planets of their own

1 December 2004 | ScienceNOW

Aliens Invade Kuiper Belt

by Govert Schilling

Objects in the farthest reaches of our solar system may have come from another star

29 September 2004 | ScienceNOW

Heavy Breathing on Mars?

by Richard A. Kerr

Concentrations of water and methane fuel speculation about martian life

13 September 2004 | ScienceNOW

Exoplanet Says Cheese

by Govert Schilling

If confirmed, new sighting would be first of a planet outside our solar system

31 August 2004 | ScienceNOW

Hard Feelings Over Small Planets

by Robert Irion

U.S. astronomers upset by Europeans' hasty announcement of possibly rocky world

25 August 2004 | ScienceNOW

Planet Hunting Gets Rocky

by Robert Irion

The lightest known extrasolar planet may consist mostly of rock, not gas

3 August 2004 | ScienceNOW

Next Stop, Mercury

by Govert Schilling

MESSENGER mission blasts off to explore the innermost planet

29 July 2004 | ScienceNOW

Moon Rock Tells All

by Kim Krieger

Isotope study reveals gory details of a meteorite's violent past

2 July 2004 | ScienceNOW

Perfection at Saturn's Rings

by Richard A. Kerr

Cassini's flawless performance bodes well for ring scientists

1 July 2004 | ScienceNOW

Late Rain on Mars?

by Richard A. Kerr

Branching valleys suggest Mars stayed warm and wet longer than thought

14 June 2004 | ScienceNOW

Snapshot of a Saturn Moon

by Richard A. Kerr

Little Phoebe appears to have had a rough life

27 May 2004 | ScienceNOW

Youngest Extrasolar Planet Reported

by Richard A. Kerr

A stellar doughnut suggests planets can form quickly by collapsing debris

10 May 2004 | ScienceNOW

Opportunity Peers Into Endurance Crater

by Richard A. Kerr

Mars rover spies rock layers that predate Eagle crater's salty sea

20 April 2004 | ScienceNOW

NASA Backs Two Planet-Hunting Missions

by Andrew Lawler

Spacecraft to be launched in the next decade would search for Earth-sized planets

19 April 2004 | ScienceNOW

Cosmic Magnifier Spies a Planet

by Donald Goldsmith

Extrasolar planet hunters add a new trick to their repertoire

24 March 2004 | ScienceNOW

Methane Means Martians?

by Richard A. Kerr

Gas in the martian atmosphere indicates either life or volcanic belching

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