Environmental studies major Anderson Page built a 144-square-foot house as part of his senior thesis project and plans to live there for the summer.
Crews spent the summer upgrading Northeastern’s campus, revamping classroom, office, dining and other spaces.
Boston’s Big Dig — the most costly highway project in United States history — has been plagued with problems since ground was broken in 1991. Last week, inspectors discovered a sinkhole beneath the surface of the I-90 connector tunnel, possibly caused by a ground-freezing process used during construction. We asked Thomas Sheahan, a professor of civil and environmental engineering at Northeastern University, to explain why the ground-freezing process was used and whether it caused the sinkhole to form.