June 30 is Asteroid Day.
2020年6月30日星期二
2020年6月29日星期一
An Astronaut's View of Work
Spacewalkers Bob Behnken (left) and Chris Cassidy (right) in the Quest Airlock on June 26, 2020, before beginning a spacewalk to replace batteries on one of two power channels on the International Space Station.
2020年6月26日星期五
Hubble Captures Galaxy on Edge
We don’t see the beautiful spiral arms of galaxy NGC 5907 in this Hubble image because we are viewing it edge-on, like looking at the rim of a plate. It is for this reason that NGC 5907 is also known as the Knife Edge galaxy.
2020年6月25日星期四
The Space Station's Solar Transit
This composite image, made from six frames, shows the International Space Station, with a crew of five onboard, in silhouette as it transits the Sun.
2020年6月24日星期三
A Solar Eclipse Shadows Asia
On June 21, 2020, as the International Space Station orbited over Kazakhstan and into China, an external high-definition camera captures this picture of the solar eclipse shadowing a portion of the Asian continent.
2020年6月23日星期二
NGC 7027: Like a Metallic Jewel Bug in the Sky
In this image NGC 7027 resembles a jewel bug, an insect with a brilliantly colorful metallic shell.
2020年6月22日星期一
Astronauts Chris Cassidy and Bob Behnken Work on U.S. Spacesuits
NASA astronauts (from top) Chris Cassidy and Bob Behnken work on U.S. spacesuits.
2020年6月19日星期五
Black Hole Bounty Captured in the Center of the Milky Way
Astronomers have discovered evidence for thousands of black holes located near the center of our Milky Way galaxy using data from NASA's Chandra X-ray Observatory.
2020年6月18日星期四
Preparing for Future Missions at the Armstrong Flight Research Center
Pilots Troy Asher and Wayne Ringelberg walk out of NASA’s Armstrong Flight Research Center’s (AFRC) hangar in Palmdale, California, toward the flight line.
Preparing for Furture Missions at the Armstrong Flight Research Center
Pilots Troy Asher and Wayne Ringelberg walk out of NASA’s Armstrong Flight Research Center’s (AFRC) hangar in Palmdale, California, toward the flight line.
2020年6月17日星期三
Viewing the Red Planet
This artist's concept shows an astronaut on Mars, as viewed through the window of a spacecraft.
2020年6月16日星期二
Hubble Makes a Bright Find
Seen here in incredible detail is the starburst galaxy formally known as PLCK G045.1+61.1. The galaxy, which appears as multiple reddish dots near the center of the image, is being gravitationally lensed by a cluster of closer galaxies, also seen in the image.
2020年6月15日星期一
Bringing Einstein's Concepts to Life Through Art
Launched on April 20, 2004, Gravity Probe B (GP-B) was a collaboration between Stanford University and NASA designed to test two previously untested aspects of Albert Einstein’s general theory of relativity.
2020年6月12日星期五
Hubble Glimpses a Galaxy Among Many
Looking deep into the universe, the Hubble Space Telescope catches a passing glimpse of the numerous arm-like structures that sweep around this barred spiral galaxy, known as NGC 2608. Appearing as a slightly stretched, smaller version of our Milky Way, the peppered blue and red spiral arms are anchored together by the prominent horizontal
2020年6月11日星期四
Grand Finale: One of Cassini's Last Dives
This illustration imagines the view from NASA's Cassini spacecraft during one of its final dives between Saturn and its innermost rings.
2020年6月10日星期三
The Space In-between: Aurora Australis
Like a wisp of green smoke, the aurora australis seemingly intersects with the Earth's airglow as the International Space Station orbited above the Indian Ocean halfway between Australia and Antarctica.
2020年6月9日星期二
Japan's HTV-9 Cargo Craft Helps Supply the Space Station
Japan's resupply ship, the H-II Transfer Vehicle-9 (HTV-9), is pictured attached to the International Space Station's Harmony module.
2020年6月8日星期一
The Red Planet's Holden Crater
Exquisite layering is revealed emerging from the sand in southern Holden Crater. Sequences like these offer a window into Mars' complicated geologic history.
2020年6月5日星期五
Hubble Catches Cosmic Snowflakes
The stars of the globular cluster NGC 6441 sparkle peacefully in the night sky, about 13,000 light-years from the Milky Way’s galactic center.
2020年6月4日星期四
Space Station Instrument Helps Researchers to Understand Lightning
Lightning flashes from a storm cloud to strike the ground. Such bolts represent only a small part of the overall phenomenon of lightning.
2020年6月3日星期三
Preparing the Perseverance Mars Rover to Collect Samples on the Red Planet
The samples Apollo 11 brought back to Earth from the Moon were humanity's first from another celestial body. The upcoming Perseverance rover mission will collect the first samples from another planet.
2020年6月2日星期二
Ice Melt Accelerates Regional Freshwater Depletion
A small glacier in the Arctic region of Norwegian archipelago Svalbard, as photographed by NASA's Airborne Tropical Tropopause Experiment (ATTREX).
2020年6月1日星期一
Demo-2: Launching Into History
On Saturday, May 30, 2020, a SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft is launched on NASA’s SpaceX Demo-2 mission to the International Space Station.
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