Four astronauts have embarked on a high-stakes flight around the moon, humanity’s first lunar voyage in more than half a century.

Everything seems to be going NASA's way as the countdown proceeds toward a Wednesday launch of astronauts' first trip to the moon in more than half a century.

The astronauts set to become the first lunar visitors in more than half a century have arrived at their launch site.

NASA's moon rocket is back at the launch pad following hangar repairs.

NASA has cleared its moon rocket for an April launch with four astronauts after completing the latest round of repairs.

NASA is moving its grounded Artemis moon rocket from the launch pad back to its hangar for more repairs.

NASA's giant moon rocket is headed back to the hangar for more repairs.

NASA’s new moon rocket has suffered another setback, with astronauts’ lunar trip now off until spring.

NASA aims to send astronauts to the moon in March after acing the latest rocket fueling test.

NASA has begun another practice launch countdown for its first moonshot in decades with astronauts.

NASA has begun a two-day practice countdown for its first moonshot with astronauts in 53 years.

NASA's giant new moon rocket is finally at the launch pad.

A cluster of space weather satellites has blasted off to cast fresh eyes on solar storms.

Russia’s space chief has visited the United States to discuss cooperation between Moscow and Washington on the International Space Station and lunar research with NASA’s acting chief, the first such face-to-face meeting in more than seven years.

It’s a last-minute weather scrub for SpaceX’s latest crew launch for NASA.

The Trump administration has made it harder for people, local and state governments to find critical climate change reports.

India, Poland and Hungary are back in human spaceflight.

A chartered spaceflight for India, Poland and Hungary's first astronauts in decades has been delayed indefinitely because of leak concerns at the International Space Station.

A bitcoin investor is headed to space with three polar explorers on the first flight to carry people over the North and South poles.

The replacements for NASA's two stuck astronauts are on their way to the International Space Station.

A launch pad problem has forced a flight delay to replace NASA's two stuck astronauts.

A private company is launching another lunar lander toward the moon.

SpaceX has launched a pair of lunar landers for U.S. and Japanese companies looking to jumpstart business up there.

NASA has announced more delays in sending astronauts back to the moon more than 50 years after Apollo.

Three NASA astronauts whose prolonged space mission ended with a trip to the hospital last month won't say which one of them got sick.

A NASA spacecraft has blasted off on a quest to explore Jupiter's moon Europa and reveal whether its hidden ocean might hold the keys to life.

NASA has switched off another scientific instrument on its Voyager 2 spacecraft to save power.

SpaceX has launched a rescue mission for the two stuck astronauts at the International Space Station.

New research shows space tourists experience some of the same body changes as astronauts who spend months in orbit.

The two NASA astronauts assigned to Boeing's first human spaceflight have arrived in Florida for their May launch.

South Korea has successfully launched its second military spy satellite into orbit, days after North Korea reaffirmed its plan to launch multiple reconnaissance satellites this year.

SpaceX has launched four astronauts to the International Space Station who will oversee the arrival of two new rocketships during their stint.

Another private U.S. company is taking a shot at the moon, launching a month after a rival's lunar lander missed its mark.

NASA's newest climate satellite has blasted off to survey the world's oceans and atmosphere in unprecedented detail.

SpaceX has launched Turkey's first astronaut along with a Swede and Italian to the International Space Station.

A U.S. labor agency has accused SpaceX of unlawfully firing employees who penned an open letter critical of CEO Elon Musk and creating an impression that worker activities were under surveillance by the rocket ship company.

The U.S. military has launched its secret space plane on another mission that's expected to last at least a couple of years.

A NASA spacecraft has rocketed away on a six-year journey to a rare asteroid made of metal.

NASA says the study of UFOs will require new scientific techniques, including advanced satellites as well as a shift in how unidentified flying objects are perceived.

Four astronauts from four countries are rocketing toward the International Space Station.

Four astronauts will have to wait an extra day to get to space.

The four astronauts assigned to fly around the moon next year have gotten their first look at their spacecraft.

NASA's Voyager 2 spacecraft is back in contact again, after flight controllers corrected a mistake that had led to weeks of silence.

NASA says it has heard from its Voyager 2 spacecraft after a wrong command cut off communications.

The lengthy process of putting the retired space shuttle Endeavour on display in the vertical launch position will begin this month in Los Angeles.

NASA is publicly addressing the subject of UFOs a year after launching a study into unexplained sightings.

Saudi Arabia’s first astronauts in decades are headed to the International Space Station on a chartered multimillion-dollar flight.

Boeing's first launch of astronauts has been delayed again, this time until July.

SpaceX has launched four astronauts to the International Space Station for NASA.

Last-minute technical trouble forced SpaceX to call off an attempt to launch four astronauts to the International Space Station for NASA.

SpaceX has launched a batch of internet satellites for a competitor.

A space capsule is hurtling toward the moon for the first time in 50 years.

NASA is again postponing the launch of its new moon rocket because of a storm threatening the Florida coast.

NASA’s moon rocket is back on the pad for another launch attempt, following more repairs.

SpaceX has scored another set of double booster landings following a Florida launch for the military.

A Russian cosmonaut has rocketed from the U.S. for the first time in 20 years, catching a ride with SpaceX.

NASA's moon rocket is safely back inside its hangar as Hurricane Ian approaches Florida, its launch now unlikely before mid-November.

Hurricane Ian is prompting NASA to move its moon rocket off the launch pad and into shelter.

NASA's new moon rocket could face more launch delays, this time by tropical weather.

NASA's new moon rocket sprouted more fuel leaks in a test ahead of a possible launch attempt next week.

NASA is replacing leaky seals in its moon rocket at the pad in hopes of launching it on its first test flight by the end of this month.

NASA has called off a second launch attempt for its new moon rocket because of yet another fuel leak.

NASA is counting down toward a Saturday launch of its new moon rocket, its second attempt in a week.

A decade ago, Florida’s Space Coast was in the doldrums.

NASA will try again Saturday to launch its new moon rocket on a test flight.

Watch live as NASA’s mega Moon rocket launches an uncrewed Orion spacecraft on a six-week mission around the Moon and back to Earth.

NASA's new moon rocket remains on track for a Monday liftoff, despite a series of lightning strikes at the launch pad.

NASA's new moon rocket has arrived at the launch pad for its first test flight.

NASA is shooting for a late August launch of its giant, new moon rocket.

NASA says it has finished testing its huge moon rocket.

NASA has fueled its huge moon rocket for the first time and completed a countdown test despite a fuel line leak.

NASA is launching a study of UFOs as part of a new push toward high-risk, high-impact science.

The flight debut of NASA's mega moon rocket faces additional delays following a string of failed fueling tests.

NASA's latest attempt to fuel its huge moon rocket for a countdown test has been thwarted by a hazardous hydrogen leak.

A historic rocket launch took place on Friday afternoon, when three paying customers and a former astronaut lifted off from the Kennedy Space Center.

NASA’s dress rehearsal for its mega moon rocket has been postponed twice now by technical problems that stalled a fueling test.

NASA is kicking off a critical countdown test for its new moon rocket.

NASA’s newest X-ray observatory is circling the world after launching from Kennedy Space Center.

SpaceX has launched four astronauts to the International Space Station.

High wind off the Florida coast has prompted SpaceX to delay the return of four space station astronauts.

SpaceX's next astronaut flight is off until at least next week as more bad weather looms.

A French astronaut has used a video call from space to sound the alarm about worsening repercussions from climate change that he can see from the International Space Station.

A SpaceX launch has been delayed because of a ‘minor medical issue' involving one of the four astronauts.

SpaceX has bumped its next astronaut flight for NASA until Wednesday because of rough wind and waves hundreds of miles away.

SpaceX is resolving toilet spills in its capsules before it launches another crew for NASA.

Space X is on track for another first in the space race when its Crew Dragon spacecraft launches from NASA’s Kennedy Space Center carrying the first all-civilian mission to orbit Earth.

Space X is on track for another first in the space race when its Crew Dragon spacecraft launches from NASA’s Kennedy Space Center carrying the first all-civilian mission to orbit Earth.

Space X is on track for another first in the space race when its Crew Dragon spacecraft launches from NASA’s Kennedy Space Center carrying the first all-civilian mission to orbit Earth.

A space station astronaut is celebrating her 50th birthday with the coolest present ever _ a supply ship bearing ice cream and other treats.

Boeing’s astronaut capsule is grounded for months and possibly even until next year because of a vexing valve problem.

SpaceX has launched a fresh load of supplies to the International Space Station, including thousands of tiny sea creatures and powerful solar panels.

New Zealand has become the latest country to sign a space agreement with U.S. space agency NASA, just as New Zealand’s nascent space industry begins to take off.

SpaceX has launched its third crew in under a year for NASA, this time using a recycled rocket and capsule.

SpaceX is aiming for its third crew launch an hour before sunrise Friday.

SpaceX has bumped its next astronaut launch by a day because of dangerously high waves and wind offshore.

NASA has chosen SpaceX to build the lunar lander that will eventually put the first woman and person of color on the moon.

With this critical test finally finished, NASA now will send the rocket segment to Kennedy Space Center for launch preparations. (NASA via AP)CAPE CANAVERAL, Fla. – NASA completed an engine test firing of its moon rocket Thursday, after the first attempt in January ended prematurely. This time, the four main engines of the rocket’s core stage remained ignited for the full eight minutes. John Honeycutt, NASA's program manager for the Space Launch System or SLS rocket, said everything seemed to go well in Thursday's test firing. The SLS rocket will send an empty Orion capsule to the moon and back.

The first woman and next man on the moon will come from this elite group. Vice President Mike Pence introduced the astronauts Wednesday at the close of his final meeting as chairman of the National Space Council. The space agency is aiming for a moon landing by 2024, although the chances of that happening are growing increasingly dim. Half of the NASA astronauts have spaceflight experience. “The history is awesome, but we’re here to look toward the future,” Acaba told reporters after the announcement.

The Dragon — packed with Christmas treats and presents — should reach the space station on Monday, joining the Dragon that delivered four astronauts last month. “Dragons everywhere you look,” said Kenny Todd, NASA’s deputy space station program manager. With NASA’s commercial crew program officially under way, SpaceX expects to always have at least one Dragon capsule at the space station. The station crew watched a live broadcast of the launch, from 250 miles (400 kilometers) up. This updated cargo-carrying model — as large as the SpaceX crew capsule — will dock to the orbiting lab by itself.

In this frame grab from NASA TV, the SpaceX Dragon is seen after docking at the International Space Station, late Monday, Nov. 16, 2020. (NASA TV via AP)CAPE CANAVERAL, Fla. – SpaceX’s newly launched capsule with four astronauts arrived Monday at the International Space Station, their new home until spring. The Dragon capsule pulled up and docked late Monday night, following a 27-hour, completely automated flight from NASA's Kennedy Space Center. “Oh, what a good voice to hear,” space station astronaut Kate Rubins called out when the Dragon's commander, Mike Hopkins, first made radio contact. And so it will go, with SpaceX — and eventually Boeing — transporting astronauts to and from the station for NASA.