Word: turns
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Here's the basic difference: when the planets in our solar system first formed, they were swimming through a disk-shaped cloud of gas. Their passage roiled and compressed the gas, and the gravity of the compressed gas in turn pulled on the proto-planets. The original models suggested that the net effect would have been to drag the proto-planets inward - and while the drag would have stopped as the gas eventually dissipated, it would have been too late. They would long since have fallen into...
...those early models didn't take into account the fact that compressed gas heats up, which limits how dense it can become, and in turn limits how hard its gravity can pull on the proto-planets. Beyond that, the planets' own gravity would fling gas around - the same sort of phenomenon NASA counts on, say, when a spacecraft en route to Saturn gets a slingshot velocity boost from Jupiter on the way. By adding in both effects, Mac Low's collaborator Sijme-Jan Paardekooper, now at Cambridge, found that there are places where the net force pushes a planet inward...
...Adams' turn to get hazed. In the mostly awful Leap Year she's Anna, a beautifier of apartments about to be sold, and she's nearly engaged to the smarmy Jeremy (another thankless role for Adam Scott, who also exuded essence de smarm as Will Ferrell's real brother in Step Brothers). She thinks Jeremy's going to give her The Ring at dinner this evening, but he gives her earrings instead. Impatient to tie a comfortable knot, she resolves to follow him to a business trip to Dublin, where, as Irish tradition supposedly has it, a woman may propose...
...where some 25% of the population is currently uninsured, like Texas, setting up exchanges could take longer and cost more. And, Kingsdale warns, in states where there is "sustained and organized hostility" to reform (as in red states in the South and Midwest), "that in and of itself could turn a good program...
...anger seemed to turn into violence late Thursday night after masked men on motorcycles firebombed three churches in the city, gutting the ground floor of the Metro Tabernacle Church, located in a commercial building in the Desa Melawati suburb of the capital. The attacks, which police said appeared uncoordinated, were condemned by the government, opposition MPs and Muslim clerics alike. On Friday, Muslims demonstrated in scores of mosques across the country, but the protest was peaceful. In the mosque in Kampung Baru, a Malay enclave in the city, Muslims held placards that read "Leave Islam alone! Treat...