3 Questions

3 Questions: Bradford Hager on Haiti’s coming quakesThe MIT geophysicist expects more earthquakes could hit the region relatively soon.

3 Questions: Making unemployment workWith large numbers of Americans out of work, economist Ivan Werning suggests some better ways to make unemployment insurance operate

3 Questions: Henry Jacoby on CopenhagenThe co-director of MIT’s Global Change program discusses what to expect from the U.N. Climate Change Conference, and the effects of ‘Climategate’

3 Questions: Suzanne Corkin on the world’s most famous amnesicThis week, scientists plan to slice the brain of H.M., the amnesia patient who died last year and whose condition helped shed light on how memories are formed.

3 Questions: Sara Seager on searching for Earth-like planetsMIT planetary scientist discusses projects that aim to discover distant planets similar to our own, and what we can learn when we find them

3 Questions: Sergey Paltsev on the costs of climate-change legislationMIT’s Joint Program on the Science and Policy of Global Change has pegged the annual cost of the proposed cap-and-trade legislation in Congress at $400 per U.S. household. But estimating the cost of doing nothing is far more difficult.

3 Questions: Jeffrey Harris on why we still don't have an HIV vaccineThe MIT economist blames inadequate incentives for the failure to develop a vaccine against the virus that causes AIDS. He argues governments should help industry create an HIV vaccine by sharing risk.

3 Questions: Steven Nahn on the elusive Higgs bosonTroubles at the Large Hadron Collider have led some physicists to suggest the Higgs boson is sabotaging its own discovery. Nahn explains why he disagrees.

3 Questions: Robert Solow on the struggle aheadThe MIT Nobel laureate explains why we need more economic stimulus — and more innovation.

3 Questions: Vincent Lépinay on bankers unleashedAn MIT anthropologist, who studies financial practices, discusses how ever-changing banking tools baffle regulators.

3 questions: Ben Weiss discusses what a wet moon might meanThe planetary scientist explores the implications of the recent discovery of water on the lunar surface.

3 Questions: AIDS researchers on new vaccine resultsPartial success of a new AIDS vaccine offers clues to help develop a stronger vaccine, say MIT’s Arup Chakraborty and MGH’s Bruce Walker.

3 Questions: Phillip Sharp calls for 'New Biology' pushThe U.S. needs an ambitious biology research initiative to tackle broad challenges involving food, energy, the environment and health, says Nobel laureate.

3 Questions: Evan Ziporyn on his new opera

3 Questions: William S. Swelbar on his aviation blog

3 Questions: Jeffrey Hoffman on fixing the Hubble Space Telescope

3 Questions: Charles Stewart on voting survey

3 Questions: Kosta Tsipis on nuclear proliferation

3 Questions: James Poterba on the recession

3 Questions: Michael Cusumano on letting U.S. automakers fail