The epic rocket landing SpaceX pulled off today (April 8) is a big step forward in humanity's march out into the cosmos, company founder and CEO Elon Musk said. SpaceX managed to land the first stage of its Falcon 9 rocket on a robotic "drone ship" in the Atlantic Ocean during the successful launch of the company's uncrewed Dragon cargo capsule toward the International Space Station from Florida's Cape Canaveral Air Force Station this afternoon. The first-of-its-kind touchdown is an important milestone in SpaceX's quest to develop completely reusable rockets, which Musk has said could revolutionize spaceflight by reducing launch costs by a factor of 100. "I think it's another step toward the stars," Musk said during a post-launch press briefing today. "In order for us to really open up access to space, we've got to achieve full and rapid reusability. And to be able to do that for the primary rocket booster is going to [have] a huge impact on cost."

SpaceX has arrived at the International Space Station (ISS), delevering the world's first inflatable tent for astronauts. The US aerospace company's unmanned Dragon cargo ship, carrying lettuce seeds, lab mice and an inflatable pop-up room, arrived on Sunday at the space station where six spacecraft are now docked. British astronaut Tim Peake reached out with the station's robotic arm and grappled the Dragon, carrying its nearly 3,175kg of gear, at 7:23am (11:23 GMT). "It looks like we've caught a Dragon," said Peake. Four Russian spaceships - two Progress cargo carriers and two Soyuz capsules which ferry astronauts - are docked at the space station, along with Orbital ATK's Cygnus cargo ship and SpaceX's Dragon. Not since 2011, during the final flight of the space shuttle Discovery, have there been six vehicles parked at the ISS at the same time, NASA said.

They tuned in by the tens of thousands, crowding around their screens the way residents of the Florida Space Coast once jammed the beaches to witness rocket launches at the dawn of the Space Age. But the audience watching SpaceX's live web broadcast of its launch from Cape Canaveral on Friday was treated to a show that until just a few years ago was widely discounted as impossible -- the vertical landing of the Falcon 9 rocket, which used its engine thrust to slow down and touch softly on a boat in the Atlantic Ocean. On Sunday morning, SpaceX's Dragon spacecraft caught up to the International Space Station. Flying at 17,500 mph, the spacecraft pulled up alongside the orbiting laboratory, and at 7:23 a.m., European astronaut Tim Peake grabbed it using a robotic arm. While the main mission was to deliver food and cargo to the station, it was the landing at sea that was hailed as a breakthrough. President Obama, whose administration followed through with controversial plans to retire the space shuttle and contract out missions to the space station, tweeted his congratulations.

SpaceX has finally managed to safely land its re-usable rocket onto a barge, after previous repeated attempts saw the Falcon 9 kit explode. Successfully landing the booster onto the large "drone ship" is a huge step forward for SpaceX and its found Elon Musk, and for private space travel more generally. The company hopes that the re-usable rockets will make space travel much cheaper in future, since they can be re-filled and then sent back into space rather than re-building from scratch. Mr Musk celebrated the successful landing by referencing the T-Pain song "I'm On A Boat". He later deleted the tweet.

A Falcon 9 rocket took off from Cape Canaveral, carrying more supplies to the International Space Station. SpaceX was able to land its rocket on a barge April 8, 2016, about 200 miles off the shore of Cape Canaveral, Fla. (Photo: SpaceX) CAPE CANAVERAL -- SpaceX successfully returned its Dragon spacecraft to flight Friday and landed the first stage of its Falcon 9 rocket almost on target on a barge about 200 miles offshore. Flying for the first time since a launch failure June, the Dragon and its nearly 7,000 pounds of cargo are headed for a Sunday morning rendezvous with the International Space Station. The booster landing -- not exactly in the center of the platform but enough to keep the equipment from getting wet in the Atlantic Ocean -- bolsters SpaceX's confidence that it can regularly recover rockets that could be flown again, lowering launch costs. The experiment was SpaceX's first successful ocean landing.

Fifth time's the charm: SpaceX has successfully landed the first stage of its Falcon 9 rocket on its droneship out in the Atlantic Ocean, the first time in history such a landing has ever been achieved. All four previous instances of this landing ended in failure. SpaceX hopes to use this type of rocket landing to be able to re-use the first stage of its rockets and dramatically cut the cost of space travel going forward. This landing is a huge step towards that goal, and came during an especially pivotal launch for SpaceX: SpaceX's first cargo re-supply mission to the International Space Station since a Falcon 9 exploded in mid-flight in the summer of 2015, thwarting that particular re-supply attempt. On this mission, SpaceX's uncrewed Dragon capsule -- which sits atop the Falcon 9 rocket and detaches to fly onward to the space station -- was also carrying some really exciting cargo: the first-ever inflatable space habitat designed for the space station, the Bigelow Expandable Activity Module (BEAM).

It is the first company--the first anybody to send a rocket to space and then land it on a floating barge. Sixth time is the charm, apparently. Or at least, anyone with an interest in low cost access to space hopes it will. At 4:43pm ET, the nine engines on board the Falcon 9's stage 1 rocket began pushing 1.53 million pounds of thrust against Earth. After about two and a half minutes, and several hundred thousand feet of elevation gain, the first stage detached and began a controlled fall back to Earth, arcing towards the football field-sized barge (charmingly-named "Of Course I Still Love You") in the Atlantic Ocean.

A Falcon 9 rocket took off from Cape Canaveral, carrying more supplies to the International Space Station. SpaceX was able to land its rocket on a barge April 8, 2016, about 200 miles off the shore of Cape Canaveral, Fla. (Photo: SpaceX) CAPE CANAVERAL -- The first stage of a SpaceX Falcon 9 rocket almost hit the bull's eye Friday, landing on a barge about 200 miles offshore. Though not exactly in the center of the platform, the maneuver was enough to keep the equipment from getting wet in the Atlantic Ocean. The experiment was the first successful landing. The booster possibly could have returned to land, like one did in December, SpaceX said.

Humans become aroused when touching robots in sensitive places, a new study has found. Far from seeing robots as just computers, humans can become physiologically aroused from touching a human-shaped robot in private places like their eyes and buttocks, the Stanford study found. The results could have huge consequences for the creation of robots in the future, such as ones that people live or even have sex with. It might also help people create "robot stand-ins", that allow people to touch others when actually being there isn't an option, the researchers said. Scientists have taken a leaf out of the script of The Martian by showing how easy it would be to grow your own veg on the Red Planet.

For the vast majority of queries (for example, navigation, simple fact lookup, and others), search engines do extremely well. Their ability to quickly provide answers to queries is a remarkable testament to the power of many of the fundamental methods of AI. They also highlight many of the issues that are common to sophisticated AI question-answering systems. It has become clear that people think of search programs in ways that are very different from traditional information sources. Rapid and ready-at-hand access, depth of processing, and the way they enable people to offload some ordinary memory tasks suggest that search engines have become more of a cognitive amplifier than a simple repository or front-end to the Internet. Like all sophisticated tools, people still need to learn how to use them. Although search engines are superb at finding and presenting information—up to and including extracting complex relations and making simple inferences—knowing how to frame questions and evaluate their results for accuracy and credibility remains an ongoing challenge. Some questions are still deep and complex, and still require knowledge on the part of the search user to work through to a successful answer. And the fact that the underlying information content, user interfaces, and capabilities are all in a continual state of change means that searchers need to continually update their knowledge of what these programs can (and cannot) do.