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Eco-Friendly Fireworks Offer Safer Pyrotechnics

"Green" fireworks produce less smoke and use fewer toxic metals than other pyrotechnics.

Solved: Why Blind Faults Make Big Quakes

Why do blind faults shake harder when they break? Scientists find the answer.

Vegans Have Lower Bone Density

Vegans have 5 percent lower bone mass density than non-vegans, research finds.

Inflatable Tower Promises Easy Access to Space

A nine-mile-high inflatable tower could offer cheap access to outer space.

BLOG: Return to the Moon? Yea or Nay?

Should NASA return to the moon or aim straight for Mars? Vote here.

Mystery of Salamander Limb Regrowth Solved

Scientists have uncovered how salamanders are able to regenerate their limbs.

Feathers Revealing Extinct Moa's True Colors

A stash of fossil feathers from the extinct Moa reveal a wealth of information.

Trees Buffered Earth From Iceball Fate

Greenery likely helped save Earth from runaway cooling, research concludes.

Astronomers Identify New Class of Black Hole

A new class of black hole may help to explain how supermassive black holes develop.

Cancer: Another Threat to Wildlife

Wild animals get cancer too and the disease is another conservation threat.

BLOG: Ancient Game Solves Genetic Mysteries

A 2,000-year-old logic puzzle is tapped to speed up genetic sequencing.

Gravity's Imprint Sought in Big Bang Glow

Scientists begin a search for gravitational waves stemming from the Big Bang.

Human, Ape Ancestor Hails From Asia

A new primate fossil suggests the human and ape ancestor came from Asia.

Giant, Spitting Worms Garner Protection Plea

Supporters of the Palouse earthworm file a petition to protect this rare, giant worm.

BLOG: Radio Waves Faster than Light?

A new gadget allegedly speeds radio waves faster than light. Is it for real?

Mummified Dino Yields Skin Molecules

Dinosaur soft tissue skin structures are recovered from a mummified hadrosaur.

L.A. Traffic Causing Premature Births: Study

Moms exposed to high levels of traffic exhaust are at high risk of giving birth prematurely.

Predatory Dingoes Promote Diversity

Although perceived as invasive predators, dingoes actually protect biodiversity.

Hadrosaur Had Teeth-Grinding Issues

Marks on hadrosaur teeth show the dinosaurs ground their teeth sideways.

SLIDE SHOW: Lights Out for Solar Probe

Take a look at some milestone events in the Ulysses spacecraft's 19-year life.

Increasing Dust Accelerates Mountain Snowmelt

Greater dust accumulation as a result of climate change speeds up mountain snowmelt.

BLOG: Newly-Picked Astronauts Won't Fly on Shuttle

NASA taps a CIA agent, Air Force officers and MD's to join the 2009 astronaut class.

BLOG: Playboy Bunnies Close to Extinction

Researchers work to save bunnies named after Playboy founder Hugh Hefner.

Rainforests More Fragile Than Estimated

Even moderate global warming may eradicate much of the world's rainforests.

Lasers to Seek, But Not Destroy, Subs

Lasers could help the U.S. Navy detect enemy submarines.

BLOG: Dramatic Volcano Footage

An astronaut captures footage of a massive volcanic eruption in Russia from space.

WATCH VIDEO: Titanic Artifacts Arrive in NYC

Artifacts from the Titanic finally arrive at their intended destination.

ET's Earth Appears as Pale, Red (Not Blue) Dot

Molecules relevant to life in Earth's atmosphere show up in red wavelengths.

BLOG: Michael Jackson And His Pets

Michael Jackson's first hit was about his pet rat and his pet collections grew from there.

Models of Earliest Vehicles Found

Tiny models suggest the earliest wheeled vehicles were pulled by camels and bulls.

BLOG: Michael Jackson's Patent

Michael Jackson, a masterful dancer, held a patent for a dance-assisting device.

Pigeons Make Good Art Critics

Pigeons have the potential to learn and mark a "good" piece from a "bad" one.

Bacteria Plan for Future Events

Bacteria and yeast are shown to use one event to predict the arrival of another.

Blue Paint Traces Found on Elgin Marbles

Marble carvings that once adorned the Parthenon were originally coated in blue.

Robot Surgeon Finds Tiny Shrapnel

The robot surgeon successfully found the shrapnel without human help.

BLOG: Greenland: The 800-Pound Gorilla?

Signs show that Greenland may have begun a big melt, with rising seas a possibility.

Spotted Owls Face Genetic Bottleneck

Faced with declining populations, spotted owls have lost genetic diversity.

Mysterious Space Blobs 'Tween' Galaxies

Scientists find that these space blobs are adolescent galaxies.

NASA Has Plan B to Launch U.S. to Moon

The side-mount shuttle is NASA's backup plan to get the U.S. to the moon.

Marble Head of Emperor Titus Found

The marble head is among many treasures unearthed near Naples.