UA-113443594-1

NASA finds strongest storms in weakening Tropical Cyclone Sanba

IMAGE: On Feb.14 at 10:45 a.m. EDT (1435 UTC) NASA's Terra satellite found cloud top temperatures of strongest thunderstorms (yellow) in Tropical Cyclone Sanba southeast of Palawan. Temperatures were as cold... view more  Credit: Credits: NRL/NASA Infrared data from NASA's Terra satellite found the area of strongest storms in weakening Tropical Cyclone Sanba when it was over the island of Palawan. Infrared light provides valuable temperature…

Milky Way ties with neighbor in galactic arms race

Astronomers have discovered that our nearest big neighbour, the Andromeda galaxy, is roughly the same size as the Milky Way. It had been thought that Andromeda was two to three times the size of the Milky Way, and that our own galaxy would ultimately be engulfed by our bigger neighbour. But the latest research, published today, evens the score between the two galaxies. It found…

Dance of auroras

The shower of electrons bouncing across Earth's magnetosphere - commonly known as the Northern Lights - has been directly observed for the first time by an international team of scientists. While the cause of these colorful auroras has long been hypothesized, researchers had never directly observed the underlying mechanism until now. The scientists published their results today in Nature. The spectacle of these subatomic showers…

ESO’s VLT working as 16-meter telescope for first time

One of the original design goals of ESO's Very Large Telescope (VLT) was for its four Unit Telescopes (UTs) to work together to create a single giant telescope. With the first light of the ESPRESSO spectrograph using the four-Unit-Telescope mode of the VLT, this milestone has now been reached [1]. After extensive preparations by the ESPRESSO consortium (led by the Astronomical Observatory of the University…

NASA eyes powerful Tropical Cyclone Gita in the South Pacific

IMAGE: NASA's Terra satellite saw powerful Tropical Cyclone Gita in the South Pacific Ocean on Feb. 12 at 5:20 p.m. EST (22:20 UTC). Fiji is located northwest of the storm.... view more  Credit: Credits: NASA Goddard MODIS Rapid Response Team NASA's Terra satellite provided a visible image of Category 3 Tropical Cyclone Gita as it continues to bring heavy rainfall, powerful winds and storm surge to…

Self-driving servicer now baselined for NASA’s Restore-L satellite-servicing demonstration

IMAGE: This artist's rendition shows the Restore-L servicer spacecraft robotically repairing a satellite. view more  Credit: Credits: NASA One test changed the fortunes of an advanced 3-D imaging lidar system now baselined for NASA's Restore-L project that will demonstrate an autonomous satellite-servicing capability. Officials with NASA's Satellite Servicing Projects Division, or SSPD, have officially baselined the Kodiak system -- formerly known as the Goddard Reconfigurable Solid-state…

Eclipse season starts for NASA’s SDO

IMAGE: On Sunday, Feb. 11, 2018, NASA's SDO saw a total solar eclipse in space. These images were taken in a wavelength of extreme ultraviolet light, a type of light that... view more  Credit: NASA's Goddard Space Flight Center/SDO/Joy Ng On Sunday, Feb. 11, 2018, NASA's Solar Dynamics Observatory, or SDO, saw a total solar eclipse in space when Earth crossed its view of the Sun.…

International Dark-Sky Association & 5th ALAN International Conference, Snowbird Resort, Utah

This fall, members of two international organizations dealing with the issue of light pollution will convene in Snowbird, Utah for their membership gatherings. The International Dark-Sky Association (IDA) 30th Annual General Meeting will be held Nov. 9 - 10, followed by the Artificial Light at Night (ALAN) 5th International Conference Nov. 12 - 15. The ALAN conference will be held in the United States for…

Solving the dark energy mystery: A new assignment for a 45-year-old...

IMAGE: A view inside the dome at the Mayall Telescope near Tucson, Arizona. The 2-meter corrector barrel atop the telescope will be removed and replaced with a new corrector barrel for... view more  Credit: Credit: P. Marenfeld and NOAO/AURA/NSF Forty-five years ago this month, a telescope tucked inside a 14-story, 500-ton dome atop a mile-high peak in Arizona took in the night sky for the first…

Tropical Cyclone Gita packs heavy rain, warnings now for Tonga and...

Hurricane Gita strengthened into a powerful Category 4 hurricane on Feb 12 and triggered warnings in Tonga and Fiji. NASA's Global Precipitation Measurement Mission or GPM core satellite analyzed Tropical Cyclone Gita and found heavy rainfall occurring within the system. On Feb. 12, Gita was bringing that heavy rain to Tonga and Fiji where warnings were posted. NASA's Terra satellite also provided a visible image…
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