Watch ISS spacewalk February 28

On Sunday, February 28, 3 astronauts will perform the first in a pair of International Space Station spacewalks to ready the station for solar array upgrades. How to watch live. Source: https://earthsky.org/space/watch-iss-spacewalk-feb-mar-2021…

Nearby black hole Cyg X-1 more massive than thought

New research suggests that the famous black hole Cygnus X-1 – first black hole ever detected and one of the closest to Earth – is farther away and much more massive than previously believed. Source: https://earthsky.org/space/cygnus-x-1-black-hole-more-massive-farther…

Big ideas in small packages: The seeds and worms making their way to the ISS

On Feb. 20, 2021, Northrop Grumman will launch its Cygnus cargo spacecraft aboard an Antares rocket to deliver several tons of cargo and supplies to the International Space Station for its 15th resupply mission (CRS-15). Included in these bulky supplies will be a handful of items that weigh no more than a few grams—a sampling of seeds, some microscopic proteins, and…

The First Black Hole Ever Discovered is More Massive Than We Thought

Neel V. Patel, writing at MIT Technology Review: Einstein first predicted the existence of black holes when he published his theory of general relativity in 1916, describing how gravity shapes the fabric of spacetime. But astronomers didn’t spot one until 1964, some 6,070 light-years away in the Cygnus constellation. Geiger counters launched into space detected cosmic x-rays coming from a region…

What is the Milky Way?

When someone says “Milky Way,” do you think of the starry pathway across our sky, or of the great pinwheel-shaped galaxy in space? Both are correct! Source: https://earthsky.org/astronomy-essentials/what-is-the-milky-way-galaxy…

Space Station, Cygnus test technology for 5G communications, other benefits

A Northrop Grumman Cygnus supply craft carried a load of new scientific experiments to the International Space Station in early October. That is only one of the jobs the craft has, though. Once it undocks from the station Cygnus will continue operations by hosting a two-week test of emerging technologies known as SharkSat. Source: https://phys.org/news/2021-01-space-station-cygnus-technology-5g.html…

Why are the stars so bright tonight?

In late December – and in January and February – our evening sky faces away from the Milky Way’s star-rich center. We look toward the depths of space beyond our galaxy’s boundaries and toward some close, bright stars in our local spiral arm. Source: https://earthsky.org/astronomy-essentials/star-seasonal-appearance-brightness…

Study explores a unique filament of the Cygnus X complex

Using the Shanghai 65-m TianMa Radio Telescope (TMRT), Chinese astronomers have investigated a gas filaments of the Cygnus X molecular cloud complex known as DR21SF. Results of the new study, presented in a paper published December 4, shed more light on the properties of this unique structure. Source: https://phys.org/news/2020-12-explores-unique-filament-cygnus-complex.html…