Appearing as strings of orange dots, the brightest sets of dots belong to asteroids Klotho and Lina. Both orbit out in the main asteroid belt between Mars and Jupiter, while smaller, more distant asteroids can also be seen passing through the image. These asteroids were imaged by NEOWISE, the astero […]
In March 2017 during her eighth spacewalk, Peggy Whitson broke the spacewalking record for female astronauts. Whitson also was once the recordholder for amount of time in space by a female astronaut. In this video, she congratulated the new recordholder Christina Koch. In this image, Whitson works o
Today is National Doctors’ Day! Celebrated each year on March 30, National Doctors’ Day recognizes the contributions of physicians to individual lives and communities. At NASA, a number of our astronauts also have been physicians. NASA also has flight surgeons, who specialize in caring f
NGC 4618 was discovered on April 9, 1787, by the German-British astronomer William Herschel, who also discovered Uranus in 1781. Only a year before discovering NGC 4618, Herschel theorized that the “foggy” objects astronomers were seeing in the night sky were likely to be large star clusters located
This photograph shows ripples in the surface of Denman Glacier in East Antarctica that throw shadows against the ice. The glacier is melting at a faster rate now than it was from 2003 to 2008. The glacier retreated 3.4 miles (5.4 kilometers) from 1996 to 2018, according to a new study by scientists
NASA’s new three-dimensional portrait of methane, the world’s second-largest contributor to greenhouse warming, shows it arising from a diversity of sources on the ground and how it moves through the atmosphere. Combining multiple data sets from emissions inventories, including fossil fuel, agricult
In this image from Dec. 2019, astronaut Christina Koch handles media bags that enable the manufacturing of organ-like tissues using the BioFabrication Facility (BFF), a 3-D biological printer on the International Space Station. The BFF could become a part of a larger system capable of manufacturing
The central region of our galaxy, the Milky Way, contains an exotic collection of objects, including a supermassive black hole weighing about 4 million times the mass of the Sun (called Sagittarius A*), clouds of gas at temperatures of millions of degrees, neutron stars and white dwarf stars tearing
Michelle Lynde is an aerospace engineer who conducts aerodynamic analysis of configurations using Computational Fluid Dynamics tools, wind tunnel experiments and flight tests. Like other women at NASA, she makes history every day by contributing to groundbreaking missions and projects in the areas o
Former astronaut Al Worden, command module pilot on the Apollo 15 lunar landing, passed away March 18, 2020, in Texas. As command module pilot, Worden stayed in orbit while commander David Scott and lunar module pilot Jim Irwin explored the Moon’s Hadley Rille and Appennine Mountains. Apollo 15’s c
