Stories by Philip Yam

Updates: Whatever Happened to Midsize Black Holes?

Also: updates on HIV's origins, Neandertal fishing and transgenic guidelines

Updates: Whatever Happened to Virus-Built Batteries?

Also Updates on brown fat, diabetes and methane from grass

Updates: Whatever Happened to LED Lightbulbs?

Also Updates on Bubbles Producing Light, Virus-Infecting Viruses and Galapagos Tortoise Breeding

Infection Correction

News Scan Briefs: Eyes on the Tops of Their Heads; Play Dates for Germ Sharing; Another Gene for Alzheimer's

Also: The New Stone Age; Mountain Climbing Trees; Location Influences Voters; and Martian Hit-and-Run

The New Stone Age

Updates: Whatever Happened to Anesthesia and Pain?

Also updates on Planetary Protection from Jupiter; Personal Gene Tests; Valdez Payout

News Scan Briefs: Iron-Tough Paper; DEET-free Repellent; Artificial Corneas

Biology -- Repellents -- Materials -- Neuropsychology

New Close-Ups on Mars, Courtesy of Phoenix

For more SciAm.com coverage of the Phoenix Lander's mission on Mars, click here

Is That Your Final Offer?

Updates: Whatever Happened to Robotic Limbs?

Genomic Exit -- Mind-Controlled Limbs -- Ad Hoc Networks -- Isolated Peoples

Updates: Whatever Happened to Protecting Cells from Radiation?

Ozone Warming -- Antiradiation -- Quantum Novelty -- Babbage Computer

Updates: Whatever Happened to . . . ?

Self-Cleaning Clothes -- Titan's Ocean? -- Synthetic Success -- Crisis Mapping

Whatever Happened to the Pioneer Spacecraft?

More Pioneer Anomalies -- Black Hole Labs -- Hair-Raising Work -- Tuna Triumph

Updates.... Whatever Happened To?

Nanotubes -- Offshore Wind Power -- Synthetic Genome -- Stress at Work

Eye on the Illusion

Mercury Rising

Choosiness for Cooperation

Updates.... Whatever Happened To?

Hoyle's Missing Equation -- Flu Sites -- Artificial Capillaries -- Stubborn Scores

Updates... Whatever happened to?

AIDS Accounting -- IPCC's Tough Talk -- Seasonal Spread -- Pollock Put-Down