The week in tech: 5 must-know things about Mars, Apple, more

— -- They say that "All's fair in love and war." This week in tech, there was plenty of love among nations in a future endeavor to Mars, but there's no love lost in a war between Apple and Samsung.

Google delays arrival of Nexus Q

Did you order a Nexus Q from Google? Chances are you don't have it yet. Google announced that it will delay the sale of the Nexus Q, even though it was originally scheduled to be released in July.

The Nexus Q, a spherical gadget that Google described as the first social streaming device, allows Android-powered devices to play music and videos on a home TV.

Google first unveiled the Nexus Q at the Google I/O developer conference in California in June. At the same conference, the tech giant revealed the Nexus 7, Google's first tablet computer; the latest Android software update; changes to Google+, its 1-year-old social network; and Google Glass, a preliminary project to mount a smart-camera in a pair of glasses.

"Aw, this sucks!"

Not so fast. If you pre-ordered a Nexus Q, Google has promised you'll get the $299 device for free.

Is that really all we know?

Pretty much. Google did not say when it would release the Nexus Q or why it is delaying its release.

SPACE BREAK: NASA says landing on Mars will be an international effort

NASA chief Charles Bolden told USA TODAY that the 2030s' manned space flight to Mars will likely be an international mission rather than a purely American one.

"I have no desire to do a Mars landing on our own," Bolden said. "The U.S. cannot always be the leader, but we can be the inspirational leader through international cooperation."

Six astronauts will spend six months to fly to Mars. They will then land on the fourth rock from the sun and stay for a month before spending eight months on the return voyage.

What's the next step?

Meanwhile, unmanned rover Curiosity is set to land on Mars early Monday morning. It will join Opportunity, which has been traversing Mars' red landscape for eight years. Bolden hopes to broadcast the landing in New York City's Times Square to satiate our pop culture fascination with the Red Planet.

Why should I care?

Because Mars is awesome, writes Britt Kennerly for Florida Today. From Ray Bradbury to Buck Rogers, Earth's neighbor has long been speculated as a potential second home for the human race and the origin of extraterrestrial life, hence the term "Martian."

Though more of a sci-fi idea in popular culture, some scientists do see hope for the planet's ability to sustain life. NASA science chief John Grunsfeld says there is a "very high" chance of finding chemical signs on Mars with Curiosity that would point to the planet's potential for a habitable environment 2.5 billion years ago.

Apple vs. Samsung: Who really created the smartphone?

In the Wild West of technological innovation, there are bound to be a couple of shootouts.

Apple and Samsung held opening statements in court Monday, one year after after Apple accused Samsung of stealing tablet and smartphone technology in defiance of U.S. patent law. Apple claims Samsung's tablets, including the latest Galaxy S III and Galaxy Tab, are too similar to Apple's iPhone and iPad.

Apple cites internal Samsung documents and multiple similarities between Apple's and Samsung's mobile devices, including using rounded edges and user controls such as tapping a screen to zoom in.