NGC 2359 is a helmet-shaped cosmic cloud with wing-like appendages popularly called Thor's Helmet. Heroically sized even for a Norse god, Thor's Helmet is about 30 light-years across. In fact, the helmet is more like an interstellar bubble, blown as a fast wind from the bright, massive star near the bubble's center inflates a region within the surrounding molecular cloud.
Known as a Wolf-Rayet star, the central star is an extremely hot giant thought to be in a brief, pre-supernova stage of e [...]
The Expedition 58 crew is helping scientists today understand how astronauts perceive time and orient themselves when living in space. The orbital residents are also working on CubeSat and free-flying robotics hardware aboard the International Space Station.
Astronauts Anne McClain and David Saint-Jacques wore virtual reality gear for the Time Perception experiment sponsored by the European Space Agency. The study takes place in the Columbus lab module and is researching the hypothesis that t [...]
Opportunity had already reached Perseverance Valley by June of 2018. Its view is reconstructed in a colorized mosaic of images taken by the Mars Exploration Rover's Navcam. In fact, Perseverance Valley is an appropriate name for the destination. Designed for a 90 day mission, Opportunity had traveled across Mars for over 5,000 sols (martian solar days) following a January 2004 landing in Eagle crater.
Covering a total distance of over 45 kilometers (28 miles), its intrepid journey of explora [...]
The three residents onboard the International Space Station today worked with a diverse array of science hardware. The trio continues to explore what living in space is doing to their bodies and helped scientists promote healthier humans in space and on Earth.
Astronauts have reported increased head and eye pressure during long-duration space missions. The Expedition 58 crew is researching that phenomenon today to help doctors reverse the upward fluid shifts that affect space residents.
On Valentine's Day in 1990, cruising four billion miles from the Sun, the Voyager 1 spacecraft looked back one last time to make this first ever Solar System family portrait. The complete portrait is a 60 frame mosaic made from a vantage point 32 degrees above the ecliptic plane.
In it, Voyager's wide angle camera frames sweep through the inner Solar System at the left, linking up with gas giant Neptune, the Solar System's outermost planet, at the far right. Positions for Venus, Earth, Jupit [...]
One of the most successful and enduring feats of interplanetary exploration, NASA's Opportunity rover mission is at an end after almost 15 years exploring the surface of Mars and helping lay the groundwork for NASA's return to the Red Planet.
The Opportunity rover stopped communicating with Earth when a severe Mars-wide dust storm blanketed its location in June 2018. After more than a thousand commands to restore contact, engineers in the Space Flight Operations Facility at NASA's Jet Propuls [...]
Wednesday saw the Expedition 58 crew explore the inner workings of the human body in space and maintain cooling systems aboard the International Space Station.
NASA astronaut Anne McClain spent all day setting up cooling gear inside the U.S. Destiny lab module and Japan’s Kibo lab module. She drained and refilled water pumps inside the Fluid System Servicer and the Internal Thermal Control System. The life support systems help cool the station’s atmosphere and dispel heat generated by ele [...]
Is the Helix Nebula looking at you? No, not in any biological sense, but it does look quite like an eye. The Helix Nebula is so named because it also appears that you are looking down the axis of a helix. In actuality, it is now understood to have a surprisingly complex geometry, including radial filaments and extended outer loops. The Helix Nebula (aka NGC 7293) is one of brightest and closest examples of a planetary nebula, a gas cloud created at the end of the life of a Sun-like star.
The Expedition 58 crew explored space exercise and checked out biology hardware today aboard the International Space Station. The space residents supplemented their research activities and kept the orbital lab systems in tip-top shape.
Daily exercise in space is important so astronauts can fight muscle and bone loss caused by living in weightlessness. Doctors are seeking to optimize workouts for crews to stay in shape for strenuous activities like spacewalks, returning to Earth and adjusting [...]
No, this is not a good way to get to the Moon. What is pictured is a chance superposition of an airplane and the Moon. The contrail would normally appear white, but the large volume of air toward the setting Sun preferentially knocks away blue light, giving the reflected trail a bright red hue. Far in the distance, well behind the plane, is a crescent Moon, also slightly reddened.
Captured a month ago above Valais, Switzerland, the featured image was taken so soon after sunset that planes in [...]