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NASA's Exploration Objectives Come into Focus with a New Road Map - Spaceflight News

Compared to the first trip to the moon, the journey in the coming years would be far different. They would work with commercial and even international partners. To make the plan a reality, NASA outlined four comprehensive goals such as transition LEO ...

All-sky surveyor launched from Cape Canaveral on the hunt for exoplanets - Astronomy Now Online

Credit: Walter Scriptunas II/Spaceflight Now. NASA's Transiting Exoplanet Survey Satellite, built to find planets around other stars that are close enough for detailed follow-ups by future telescopes, launched Wednesday into a unique high-altitude ...

Orbital ATK names new launcher, selects upper stage engine - Spaceflight Now

“Right now, we're planning on about three to four missions per year to close our business case,” Laidley said in a recent interview with Spaceflight Now. “A couple of those could come from the Air Force and a couple of those could come from either our ...

Gallery: TESS mission ascends atop SpaceX Falcon 9 - SpaceFlight Insider

This high-Earth orbit is in a 2:1 resonance with the Moon. According to NASA, the unique orbit will keep the spacecraft in a safe thermal and radiation environment, and maximize the amount of sky TESS can image, allowing its cameras to monitor their ...

Live coverage: NASA planet-hunting satellite launched by SpaceX - Spaceflight Now

The spacecraft will next deploy its power-generating solar panels as ground controllers at Orbital ATK's facility in Dulles, Virginia, oversee the satellite's activation and checkout procedures following this evening's seemingly successful launch. TESS ...

SpaceX rocket test-fired at Cape Canaveral for NASA telescope launch - Spaceflight Now

It will take around two months for TESS to settle into its unusual orbit and complete post-launch testing. Then scientists will press the observatory into a two-year mission searching for exoplanets. Ricker proposed the TESS mission to NASA in 2012 ...

Orbital ATK confident new rocket will win Air Force support - Spaceflight Now

“We've invested a lot of our money to date, so it was important for the Air Force to evaluate our proposal and say that it's adequate, and now any money we spend can ultimately be counted toward the cost share investment in the Launch Services ...

The Rocket Fuel Rivalry Shaping the Future of Spaceflight - Popular Mechanics

“For storability, it's very hard to beat,” says Ben Case, an engineering manager for conceptual design and flight performance at Orbital ATK who we met while visiting the plant at Promontory. “And we don't come along with some of the toxicity issues ...

Solid Rocket City: The Utah Space Center Fighting for Its Life - Popular Mechanics

And yet, Orbital ATK stays busy as the largest vendor of solid rockets in this country. The company says it has developed on average one flight systems every two years for the last two decades and builds 20 rockets annually. About 14 Orbital ATK space ...

Chinese space lab burns up on re-entry over Pacific Ocean - Spaceflight Now

The China Manned Space Agency, which oversees the country's human spaceflight program, confirmed the Tiangong 1 spacecraft's re-entry in a brief statement early Monday. A control center in Beijing monitored the spacecraft's descent, and most of ...

SpaceX supply ship departs Cape Canaveral for space station - Spaceflight Now

The Materials ISS Experiment Flight Facility, or MISSE-FF, was developed by Alpha Space, a Houston-based company that wants to offer the platform to companies seeking to test the resilience of materials to extreme temperatures, ionizing radiation ...

International Space Station crew size doubles with Soyuz MS-08 docking - SpaceFlight Insider

The International Space Station returned to its full crew compliment of six people after the three-person Soyuz MS-08 docked with the orbiting outpost to join the ongoing Expedition 55. Russian cosmonaut Oleg Artemyev and NASA astronauts Drew Feustel ...

Soyuz MS-08 trio set for 2-day flight to ISS - SpaceFlight Insider

To prepare for launch, Roscosmos rolled Soyuz MS-08 and the 162-foot (49.5-meter) tall Soyuz FG carrier rocket to the launch pad two days in advance of its anticipated March 21 flight. The vehicle was transported via rail to Pad 1/5, also known as ...

China launches latest Land Surveying Satellite into space - SpaceFlight Insider

The state-run Xinhua press agency insists that it is a land-exploration satellite and therefore will be mainly used for remote sensing exploration of land resources. The two-stage Long March 2D rocket was developed by the Shanghai Academy of ...

Cislunar station gets thumbs up, new name in President's budget request - NASASpaceflight.com

Administration green light for “Lunar Orbital Platform – Gateway”. Formerly known as the Deep Space Gateway (DSG), the NASA FY 2019 budget request submitted to Congress in February proposes a formal start to the Lunar Orbital Platform – Gateway program ...

SpaceX's most recent launch carried a secret military-funded experiment - Spaceflight Now

PODSat is the second mission to test out NovaWurks' satlet concept in orbit. A third satlet demonstrator, incorporating 14 HISat cells, is scheduled for blastoff later this year on a rideshare mission arranged by Spaceflight Industries for launch on a ...

Eutelsat plans satellite to assess potential for low-altitude constellation - Spaceflight Now

Marie-Sophie Ecuer, a Eutelsat spokesperson, told Spaceflight Now that the ELO testbed will be based on a “6U” CubeSat design, which typically are around six liters in volume and measure about the size of a briefcase. The CubeSat will extend power ...

International agencies open deep-space operating standards for public comment - SpaceFlight Insider

On March 1, 2018, NASA, ESA, and the other partnering International Space Station (ISS) agencies opened their joint International Deep Space Interoperability Standards for public comment. The documents could further global cooperation on crewed space ...

Rideshare mission for US military confirmed as second Falcon Heavy launch - Spaceflight Now

SpaceX's Falcon Heavy rocket lifts off Feb. 6 from launch pad 39A at NASA's Kennedy Space Center in Florida. Credit: Walter Scriptunas II / Spaceflight Now. More than two dozen satellites from the U.S. military, NASA and research institutions will ride ...

A Purpose-Driven Space Program? - National Review

Deep Space Gateway (recently renamed Lunar Orbital Platform–Gateway), on the other hand, is a boondoggle that will cost several tens of billions of dollars at the least and serve no useful purpose. We do not need a lunar-orbiting station to go to the ...

An orbital spaceflight is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least one orbit. To do this around the Earth, it must be on a free trajectory which has an altitude at perigee above 100 kilometers ; this is, by at least one convention, the boundary of space. To remain in orbit at this altitude requires an orbital speed of ~7.8 km/s. Orbital speed is slower for higher orbits, but attaining them requires greater delta-v.

Space Shuttle Discovery rockets to orbital velocity, seen here just after booster separation

An orbital spaceflight (or orbital flight) is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least one orbit. To do this around the Earth, it must be on a free trajectory which has an altitude at perigee (altitude at closest approach) above 100 kilometers (62 mi); this is, by at least one convention, the boundary of space. To remain in orbit at this altitude requires an orbital speed of ~7.8 km/s. Orbital speed is slower for higher orbits, but attaining them requires greater delta-v.

The expression "orbital spaceflight" is mostly used to distinguish from sub-orbital spaceflights, which are flights where the apogee of a spacecraft reaches space, but the perigee is too low.