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Wikipedia dicit:

Atlas V is the fifth major version in the Atlas rocket family. It is an expendable launch system originally designed by Lockheed Martin, now being operated by United Launch Alliance (ULA), a joint venture between Lockheed and Boeing.

Each Atlas V rocket consists of two main stages. The first stage is powered by a Russian RD-180 engine manufactured by RD Amross and burning kerosene and liquid oxygen. The Centaur upper stage is powered by one or two US RL10 engine(s) manufactured by Aerojet Rocketdyne and burning liquid hydrogen and liquid oxygen. AJ-60A strap-on solid rocket boosters (SRBs) are used in some configurations and will be replaced by GEM-63 SRBs in the near future. The standard payload fairings are 4 or 5 meters in diameter with various lengths.

Video credit: ULA

ULA dicit:

A United Launch Alliance Atlas V 541 rocket will launch NASA’s Perseverance rover to Mars. The spacecraft will explore the Jezero Crater to study the planet’s habitability, seek signs of past microbial life, collect and store samples of selected rock and soil and prepare for future human missions. The rover also carries the Ingenuity helicopter, a technology demonstration to prove that powered flight can be achieved at Mars.

Video credit: United Launch Alliance

Wikipedia dicit:

OmegA is a launch vehicle in development by Northrop Grumman as an NSSL replacement program intended for national security and commercial satellites.

OmegA is similar to the defunct Ares I and Liberty projects, both of which consisted of a five segment Space Shuttle Solid Rocket Booster (SRB) and a cryogenic second stage. Ares I would have combined a five-segment SRB with a J-2X powered second stage, while Liberty would have used a five-segment SRB with the core stage of the European Ariane 5 as a second stage. By comparison, OmegA consists of new composite solid rocket stages with a cryogenic upper stage provided by Aerojet Rocketdyne. This is replacing earlier plans to use an upper stage provided by Blue Origin. It is intended to be launched from Kennedy Space Center LC-39B or Vandenberg Air Force Base SLC-6.

OmegA is proposed as a vehicle to launch national security satellites for the United States Air Force, and could launch other government and commercial payloads, including to geostationary transfer orbit. Crewed spacecraft could also be launched, just as the predecessor Ares I and Liberty rockets, which were designed to launch the Orion space capsule.

Video credit: Northrop Grumman

NASA dicit:

Engineers at Northrop Grumman’s facility in Elkton, Maryland successfully conducted the third and final test of the attitude control motor (ACM) that provides steering for the Launch Abort System (LAS) on NASA’s Orion spacecraft, qualifying the motor for Artemis II, Orion’s first mission with astronauts. The LAS, consisting of three solid rocket motors, is designed to carry crew to safety in the event of an emergency during launch or ascent atop the agency’s Space Launch System rocket.

During the 30-second test, eight high pressure valves directed more than 7,000 pounds of thrust in multiple directions while firing at freezing conditions. All three motors on the LAS will be qualified for crewed flights ahead of Artemis II, another step that brings NASA closer to sending the first woman and next man to the Moon by 2024.

Video credit: NASA Johnson

Wikipedia dicit:

The Artemis program is an ongoing crewed spaceflight program carried out predominately by NASA, U.S. commercial spaceflight companies, and international partners such as the European Space Agency (ESA), the Japan Aerospace Exploration Agency (JAXA), and the Canadian Space Agency (CSA) with the goal of landing “the first woman and the next man” on the Moon, specifically at the lunar south pole region by 2024. NASA sees Artemis as the next step towards the long-term goal of establishing a sustainable presence on the Moon, laying the foundation for private companies to build a lunar economy, and eventually sending humans to Mars.

Video credit: NASA

ULA dicit:

A United Launch Alliance Atlas V 411 configuration rocket launched the Solar Orbiter spacecraft on its journey to study the sun for the European Space Agency (ESA) and NASA on February 9, 2020.

The spacecraft will make looping orbits around the sun and use 10 instruments to observe solar physics in unprecedented detail. At closest approach, Solar Orbiter will be about approximately 26 million miles (42 million km) from the sun.

Solar Orbiter is an international cooperative mission between ESA and NASA. ESA’s Engineering & Test Center (ESTEC) in The Netherlands is managing the development effort. Airbus developed the spacecraft. The European Space Operations Center (ESOC) in Germany will operate Solar Orbiter after launch.

Video credit: ULA