Image (Credit): A solar flare and eruption of solar material captured on June 20, 2013. (NASA/Goddard/SDO)
“These three unique missions will help us get to know our Sun and its effects on Earth better than ever before…This knowledge is critical because the Sun’s activity directly impacts our daily lives, from power grids to GPS. These missions will help us ensure the safety and resilience of our interconnected world.”
–Statement by Joe Westlake, Heliophysics Division director at NASA Headquarters, regarding Wednesday’s launch of three missions to investigate the Sun’s influence across the solar system – NASA’s Interstellar Mapping and Acceleration Probe (IMAP), Carruthers Geocorona Observatory, and the National Oceanic and Atmospheric Administration’s Space Weather Follow On-Lagrange 1 (SWFO-L1) missions.
Image (Credit): NGC 2775, which is 67 million light-years away, as captured by the NASA/ESA Hubble Space Telescope. (ESA/Hubble & NASA, F. Belfiore, J. Lee and the PHANGS-HST Team)
This week’s image is from the NASA/European Space Agency (ESA) Hubble Space Telescope. It shows the odd galaxy NGC 2275 that is hard to describe. Is it an elliptical galaxy, a spiral galaxy, or something else?
NGC 2775 sports a smooth, featureless centre that is devoid of gas, resembling an elliptical galaxy. It also has a dusty ring with patchy star clusters, like a spiral galaxy. Which is it, then: spiral or elliptical — or neither?
Because we can only view NGC 2775 from one angle, it’s difficult to say for sure. Some researchers have classified NGC 2775 as a spiral galaxy because of its feathery ring of stars and dust, while others have classified it as a lenticular galaxy. Lenticular galaxies have features common to both spiral and elliptical galaxies.
It’s not yet known exactly how lenticular galaxies come to be, and they might form in a variety of ways. Lenticular galaxies might be spiral galaxies that have merged with other galaxies, or that have mostly run out of star-forming gas and lost their prominent spiral arms. They also might have started out more similar to elliptical galaxies, then collected gas into a disk around them.
Some evidence suggests that NGC 2775 has merged with other galaxies in the past. Invisible in this Hubble image, NGC 2775 has a tail of hydrogen gas that stretches almost 100 000 light-years around the galaxy. This faint tail could be the remnant of one or more galaxies that wandered too close to NGC 2775 before being stretched apart and absorbed. If NGC 2775 merged with other galaxies in the past, it could explain the galaxy’s strange appearance today.
Image (Credit): USSR postage stamp commemorating the Luna 16 mission. (USSRPost)
On this day in 1970, the USSR’s Luna 16 spacecraft returned to Earth with a lunar sample. The Luna 16 spacecraft landed on the Moon on September 20 to collect a 3.5 ounce sample before returning to Earth.
While the Apollo 11 and 12 missions had already returned with more than 120 pounds of lunar material, it was still an important milestone for the USSR’s space program. Two more Luna missions would bring back additional lunar samples in the 1970s.
The Russian’s last attempt to send a spacecraft to study the Moon’s surface was in 2023 with Luna 25, which ended in failure.
Nasa has said it hopes to send astronauts on a ten-day trip around the Moon as soon as February. The US space agency had previously committed to launching no later than the end of April but said it aims to bring the mission forward…Artemis Launch Director, Charlie Blackwell-Thompson explained that the powerful rocket system built to take the astronauts to the Moon, the Space Launch System (SLS) was “pretty much stacked and ready to go”. All that remained was to complete the crew capsule, called Orion, connected to SLS and to complete ground tests.
NASA on Monday introduced the 10 people — selected from a pool of 8,000 applicants — who will join the agency’s astronaut corps as it races to return to the moon before attempting an unprecedented crewed mission to Mars. The group includes six women and four men, whom acting NASA Administrator Sean Duffy called “America’s best and brightest.”…This astronaut class marks the first in which there are more women than men, according to NASA.
A large asteroid strike on the Moon could have negative consequences for the artificial satellites we now depend on. That being the case, a NASA-led team has looked into the options for preventing Asteroid 2024 YR4 from making such an impact in 2032. Contrary to the usual conclusions that asteroids should be diverted, not destroyed, they think this is a time for a Hollywood-approved demolition event.
After the summer’s yield, Lord, it is time to let your shadow lengthen on the sundials and in the pastures let the rough winds fly.
As for the final fruits, coax them to roundness. Direct on them two days of warmer light to hale them golden toward their term, and harry the last few drops of sweetness through the wine.
Whoever’s homeless now, will build no shelter; who lives alone will live indefinitely so, waking up to read a little, draft long letters, and, along the city’s avenues, fitfully wander, when the wild leaves loosen.
Our Awesome Universe 