Happy Monday.

Ack, is the weekend really over?

Alright, let's break down the top stories from Monday, Sept. 17. 

Lockheed Martin Takes Off

RealMoney Contributor Stephen Guilfoyle discusses Lockheed Martin.

The U.S. Air Force awarded a contract to Lockheed Martin ( LMT - Get Report) worth a potential $7.2 billion to produce as many as 22 additional GPS III satellites. This is an option-based contract that could be exercised in part or in whole, which would be in addition to the 10 satellites of this type that Lockheed is already producing for the Air Force.

These advanced satellites, which will be manufactured in the Denver suburb of Littleton, will improve accuracy for navigational purposes, as well as security against cyber attacks. This new satellites, which are not expected to take the field until 2026, will also emit a signal more compatible with satellites currently used by European nations.

You kids ever hear of the Air, Space, & Cyber Conference? This aerospace dog and pony show kicks off today and will run through Wednesday at National Harbor in Maryland. The event is hosted by the Air Force Association. Not only will a plethora of high-ranking officers speaks at this event, but you can expect to hear from SpaceX COO Gwynne Shotwell this afternoon, and Blur Origin founder -- and Amazon (AMZN - Get Report) CEO -- Jeff Bezos on Wednesday afternoon. Both of these appearances are scheduled for 3:40 p.m. ET.

Amazon is a holding in Jim Cramer's Action Alerts PLUS member club. Want to be alerted before Jim Cramer buys or sells AMZN? Learn more now.

Step Away From Zuckerberg

TheStreet's Eric Jhonsa takes a deep dive into Facebook (FB - Get Report) .

The stock market gods are generally choosing at this time to grant steep valuations to tech companies that are viewed as guaranteed (or close to it) to keep posting solid growth in the coming years. And often, they're granting much lower valuations to companies that have one or two question marks attached -- even if there's a reasonably good chance that these companies can deliver meaningful growth as well.

In such an environment, it makes sense for a tech investor looking to outperform the market to accept a measure of business risk, rather than solely invest in stocks that are believed to have little or no such risk, but which have blasted off over the last 12 months.

Facebook's (FB - Get Report) shares are down about 7% over the last 12 months, as concerns about user growth pressures, slowing revenue growth and an expected long-term operating margin decline make themselves felt.

The social media giant, for example, still maintains an online ad platform that's only rivaled by Alphabet/Google's (GOOGL - Get Report) at a time when ad spending continues shifting towards online channels at a decent clip. Moreover, the company remains in the early stages of monetizing Facebook Messenger and WhatsApp, and still has a lot of headroom to better monetize Instagram.

Coca Cola and Aurora: A Match Made in Heaven?

Coca Cola (KO - Get Report) is flirting with the idea of going into business with Aurora Cannabis to make CBD-infused drinks. 

Jim Cramer, founder of TheStreet talks about the deal and why everyone should be paying attention to the cannabis space. 

"Do not chase these stocks," he warned in an interview with TheStreet.