Dead zone-forming algae could be used to enrich soils and produce biofuel, say scientists

Jordan Spieth gets to 10 under at the Masters before lunch (Yahoo Sports)

AUGUSTA, Ga. (AP) — 11:17 a.m. Jordan Spieth is 10-under par at the Masters. The 21-year-old Texan stretched his lead to five strokes with an 18-foot birdie putt at the fifth hole. Just as important, Spieth is making all the testy, par-saving putts that can ruin your day at Augusta National. Tiger Woods started his day with a birdie at the first, getting back to even par for the tournament.

Steelers safety Troy Polamalu retires (Yahoo Sports)

His trademark locks bouncing off the top of his No. 43 jersey, Troy Polamalu spent more than a decade flying across football fields as the heady but humble backbone of a defense that led the Pittsburgh Steelers. The eight-time Pro Bowler and 2010 NFL Defensive Player of the Year is retiring after 12 seasons, telling the only team he’s ever played for that it’s time for the next phase of

Wisconsin star Sam Dekker entering NBA draft (Yahoo Sports)

Wisconsin Badgers junior forward Sam Dekker says he will skip his final season of eligibility and enter the NBA draft. In a letter released Friday by the school, Dekker said he is excited for the next chapter of his life. Dekker averaged 13.9 points and 5.5 rebounds per game in the 2014-2015 season and helped the Badgers to a school-record 36 wins, Big Ten regular season and tournament championships, and

Iowa St coach Fred Hoiberg to have heart valve replaced (Yahoo Sports)

Iowa State coach Fred Hoiberg is scheduled to have open heart surgery next week to replace his aortic valve. The school said Hoiberg, who retired from the NBA following the 2004-05 season because of heart issues, will have the procedure next Friday at the Mayo Clinic in Rochester, Minnesota. Hoiberg replaced his aortic valve 10 years ago. He says the time has come to get the valve replaced, adding that