Here are today's top news headlines from Fool.com. Check back throughout the day as this list is updated, and follow us on Twitter at TMFBreaking.

Stock Market Today: Merck's $14 Billion Sale and Discovery's Earnings Beat

Tuesday's Top Health Care Stories: Bayer, Merck, Medivation, and AstraZeneca

Challenging First Quarter Pushes FirstEnergy Corp.'s Full-Year Guidance Lower

Higher Expenses Eat Into Denbury Resources's First-Quarter Earnings

Average Gas Price Falls to $3.684 per Gallon

Weaker Sales Slowed U.S. Home Price Gains in March

GM Recalls Nearly 60,000 Saturns to Fix Gear Shifts

Lower Milestone Revenue Widens Isis Pharmaceuticals' Q1 Loss

NRG Energy, Inc. Reports Record EBITDA; Misses on Bottom Line

Why Office Depot, Inc. Shares Soared Today

The Dow Suffers Through Downward GDP Revisions as Merck, Pfizer Lead Decliners

Twitter Plunges, Apple Said Planning iPhone Sales Push

3 Reasons Twitter Is Getting Hammered Today

Why Shares of Swift Energy Company Popped Today

Why Fabrinet Shares Plunged

Why VIVUS, Inc. Shares Soared

Why athenahealth, Inc. Shares Were Rocked

Why Capstone Turbine Corporation's Shares Fell Off a Cliff Today

General Electric Company Announces 3,900 MW of Wind Turbine Orders

Cancer Treatment Pricy but Spending Is Moderating

Despite Record Sales, Whole Foods Market Inc. Lowers Expectations for 2014

First Solar Reports Another Strong Quarter on Falling Costs

Avanir's Loss Narrows as Nuedexta Revenue Rises

Frontier Communications Corporation Announces Mixed First-Quarter Results; Shares Fall 2%

Potbelly Delivers Scrumptious Earnings for Its First Quarter

Activision Blizzard Is Ahead of the Game After Reporting Strong First-Quarter Earnings

ARRIS Group, Inc. Announces Sky-High Guidance, Lifting Shares 11% Higher

Abstral Growth and a Warrant Valuation Benefit Shrink Galena's Q1 Loss by 73%

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