March-April 2026
Volume: 114 Number: 2
A deep photographic exposure captures a time-lapsed view of 3I/ATLAS, an interstellar object and only the third large one confirmed to have passed through our Solar System from elsewhere. 3I/ATLAS has a bright dust tail (color enhanced in this image) that is typical of comets. However, the prior two interstellar objects were quite different, showing the range of small bodies in the universe. The first interstellar object detected, 1I/ʻOumuamua, did not have a dust tail but had unexpected accelerations not caused by gravity that were too strong to be from forces created by radiation. As Darryl Z. Seligman describes in “The Discovery of Dark Comets,” studying this strange interstellar object inspired him and his colleagues to take a closer look at comets in the Solar System that also seem to defy standard definition, and which might belong to an entirely new astronomical category. (Cover image by Dan Bartlett.)
In This Issue
- Astronomy
- Biology
- Chemistry
- Communications
- Computer
- Engineering
- Environment
- Ethics
- Evolution
- Medicine
- Physics
- Policy
- Psychology
- Technology
-
September-October 2007
Volume: 95 Number: 5
-
"Genetics and the Shape of Dogs," by Elaine A. Ostrander
-
"Are Planetary Systems Filled to Capacity?" by Steven Soter
-
"Secrets in the Shell," by Roberto Ballarini and Arthur H. Heuer
-
"Revolutionary Minds," by Susan Solomon, John S. Daniel and Daniel L. Druckenbrod
-
-
July-August 2007
Volume: 95 Number: 4
-
"The Shrinking Glaciers of Kilimanjaro: Can Global Warming Be Blamed?" by Philip W. Mote and Georg Kaser
-
"Feel the Burn," by Gina M. Story and Lillian Cruz-Orengo
-
"Cassini: The First One Thousand Days," by Carolyn C. Porco
-
"Kelvin, Perry and the Age of the Earth," by Philip C. England, Peter Molnar and Frank M. Richter
-
-
May-June 2007
Volume: 95 Number: 3
-
"Liquid-Mirror Telescopes," by Paul Hickson
-
"Extreme Microbes," by Shiladitya DasSarma
-
"Soot: Giver and Taker of Light," by Christopher R. Shaddix and Timothy C. Williams
-
"The Uniqueness of Human Recursive Thinking," by Michael C. Corballis
-
"The Most Dangerous Equation," by Howard Wainer
-
-
March-April 2007
Volume: 95 Number: 2
-
"Uncovering Prehistoric Hurricane Activity," by Kam-biu Liu
-
"Multiscale Modeling in Biology," by Santiago Schnell, Ramon Grima and Philip K. Maini
-
"Imprinted and More Equal," by Randy L. Jirtle and Jennifer R. Weidman
-
"Amber's Botanical Origins Revealed," by Jorge A. Santiago-Blay and Joseph B. Lambert
-
"Plug-in Hybrid Vehicles for a Sustainable Future," by Andrew A. Frank
-
-
January-February 2007
Volume: 95 Number: 1
-
"Why We Develop Food Allergies," by Per Brandtzaeg
-
"Gauging Earthquake Hazards with Precariously Balanced Rocks," by James N. Brune, Matthew D. Purvance and Abdolrasool Anooshehpoor
-
"The Mysterious Origins of the Sweet Apple," by Barrie E. Juniper
-
"The Formation of Snow Crystals," by Kenneth G. Libbrecht
-
"When Averages Hide Individual Differences in Clinical Trials," by David Kent and Rodney Hayward
-
-
November-December 2006
Volume: 94 Number: 6
-
"Gracilization of the Modern Human Skeleton," by Christopher B. Ruff
-
"Tamper-Indicating Seals," by Roger G. Johnston
-
"Embarrassment: A Form of Social Pain," by Christine R. Harris
-
"The Sounds of Spacetime," by Craig J. Hogan
-
"Growing Up with Chernobyl," by Robert K. Chesser and Robert J. Baker
-
-
September-October 2006
Volume: 94 Number: 5
-
"Rethinking the Fall of Easter Island," by Terry L. Hunt
-
"Extrasolar Planetary Systems," by Gregory P. Laughlin
-
"Algae-Dominated Reefs," by Peter S. Vroom, Kimberly N. Page, Jean C. Kenyon and Russell E. Brainard
-
"Modifying Light," by Joseph A. Castellano
-
"The Zebrafish Exposed," by Ralf Dahm
-
-
July-August 2006
Volume: 94 Number: 4
-
"Protecting Ourselves from Shellfish Poisoning," by Mary Wilcox Silver
-
"Sleep to Remember," by Matthew P. Walker
-
"The Source of Europe's Mild Climate," by Richard Seager
-
"Constructing Animal Locomotion from New Thermodynamics Theory," by Adrian Bejan and James H. Marden
-
"The Topology and Combinatorics of Soccer Balls," by Dieter Kotschick
-
-
May-June 2006
Volume: 94 Number: 3
-
"Group Decision Making in Honey Bee Swarms," by Thomas D. Seeley, P. Kirk Visscher and Kevin M. Passino
-
"The Interplanetary Transport Network," by Shane D. Ross
-
"Genetic Strategies for Controlling Mosquito-Borne Diseases," by Fred Gould, Krisztian Magori and Yunxin Huang
-
"Perceptual Pleasure and the Brain," by Irving Biederman and Edward A. Vessel
-
"A Coprological View of Ancestral Pueblo Cannibalism," by Karl J. Reinhard
-
-
March-April 2006
Volume: 94 Number: 2
-
"How Gecko Toes Stick," by Kellar Autumn
-
"Winning the Accuracy Game," by Hugh G. Gauch, Jr.
-
"The Cognitive Psychology of Belief in the Supernatural," by Jesse M. Bering
-
"Filaments of Light," by Jérôme Kasparian
-
"Knot Theory's Odd Origins," by Daniel S. Silver
-