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A selection of the latest astronomy news and blog posts.
A galaxy with three supermassive black hole hearts It's been known for a while that there are two supermassive black holes in its middle, which is not too surprising given the circumstances. What is surprising, though, is that it doesn't have two supermassive black holes in its center. It has three.
Ngc 1365 Designation: NGC 1365 Constellation: FornaxVisual magnitude: +9.6 Apparent size: 12′ x 6′Diameter: 197,000 light years. Distance: 56 million light years. This wonderful barred spiral is a member of the Fornax cluster of galaxies. It is comparable in size to our Milky Way, although it has a more pronounced bar than our galaxy has.
Starlink Satellite Trails over Brazil What are those streaks over the horizon? New Starlink satellites reflecting sunlight. SpaceX launched 60 Starlink communication satellites in May and 60 more in November. These satellites and thous…
Trevor's Travels: At Lake Arrowhead's Astronomy Village, things are always looking up Information: 909-336-1699, mountain-skies.org.
Fossils on Mars? If They Exist, NASA's Mars 2020 Rover has a Shot at Finding Them A recent study suggests the landing site for NASA's next Mars rover holds minerals that often preserve fossils on Earth.
"Unique in Our Solar System" - Physics of Enceladus's Perpetually Erupting Ocean Fissures Working with Max Rudolph of the University of California, Davis and Michael Manga of UC Berkeley, Hemingway used models to investigate the physical forces acting on Enceladus that allow the tiger stripe fissures to form and remain in place. Their findings are published by Nature Astronomy.
Meade Instruments Files for Bankruptcy Protection Meade Instruments, based in Irvine, California, filed for Chapter 11 bankruptcy protection on December 4, 2019, following its loss of a multi-million dollar antitrust lawsuit brought by Orion Telescopes and Binoculars. The filing claims Meade's debts range between $10 million to $50 million.
Black Holes and Planets First of all, the central region around a black hole emits a large amount of energy. And, you'd think that radiation would destroy any chances for planets to form. However, the dust disk is very dense, and that can block the radiation.
How the Icy Moon Enceladus Got 'Tiger Stripes' at its South Pole Saturn's moon Enceladus has mysterious, evenly spaced fissures in its icy shell where water erupts into space.
How Saturn's Moon Got Its Stripes Astronomers have struggled to understand the origin of the parallel fractures on Saturn's icy moon Enceladus, known as "tiger stripes," from which water-ice spews into space. Now, a single explanation ties all the pieces together. Saturn's moon Enceladus is famous for its water-spewing geysers, an outward sign of an underground saltwater ocean.
"Squeezing Spacetime" - LIGO Researchers End-Run Nature to Detect Gravitational Waves MIT and Caltech researchers end-run nature with a new instrument that extends LIGO’s reach “squeezing” out quantum noise.
Sweet! Sugars found in meteorites for the first time Scientists have definitively found sugars in meteorites for the first time, which are and important part of the development of life on Earth.
Elon Musk's SpaceX warned: Your internet-beaming satellites disrupt astronomy SpaceX's broadband project could severely disrupt space imaging and astroid detection.
Catalyzing space debris removal, salvage, and use The authors foresee that, over the next couple of decades, there will be a significant expansion into space. In our estimation, much of industry will eventually move off Earth and millions of people will someday be living and working in space in thriving communities for the benefit of all humans, including those remaining on Earth.
How many spaceports are too many? There is no shortage of spaceports in the United States. When launch sites come to mind, one usually thinks of Cape Canaveral Air Force Station and neighboring Kennedy Space Center, or perhaps Vandenberg Air Force Base in California or Wallops Flight Facility in Virginia.
Giant leaps for humanity: Liberalism for a multiplanetary species Progressives and socialists will be elated that all walks of life will finally start getting access to the great common that is the cosmos, and that the technology derived for and from these missions will be used to advance society in an ever better direction, helping to fight oppression and secure social justice along the way.
The grand samsaric cycles Cycle of the Zodiac Signs: Cardinal - > Fixed - > Mutable Rising Wave - > Steady wave - > Falling wave Rising investment - > Fixed investment - > Falling investment Ego rising - > Ego…
Science Needs True Diversity To Succeed, And Australian Astronomy Shows How We Can Get It Australian astronomy punches well above its weight, in terms of the research it leads and the facilities it houses. We have made remarkable discoveries in the past year alone. Our scientists have recently narrowed down the time frame for the first light in the universe.
Looking Sideways from the Parker Solar Probe Starting in 2018 though, NASA launched the robotic Parker Solar Probe to investigate regions near to the Sun for the first time. The PSPR…
Science needs true diversity to succeed - and Australian astronomy shows how we can get it A determined approach to improving diversity will also lead to better science.
FIRE December Update Progress to Early Retirement: 57.0%: Progress to Financial Independence : 76.0%: Progress to Half Annual Spending: 114.0%: Percent Home Ownership: 58.6%: Net Worth / Annual Spending Tax Adj. 14.3x of that Home: 2.2x Retire: 8.8x Non-Retire: 3.2x. Well now I get to say that for the forth month in a row that I am working hard towards that deadline.
Geminid Meteors over Chile Are meteors streaming out from a point in the sky? Yes, in a way. When the Earth crosses a stream of Sun-orbiting meteors, these meteors appear to come from the direction of the stream — with…
Elon Musk turnaround: SpaceX working on Starlink satellite so it won’t disrupt astronomy SPACEX has said they will work on the Starlink’s brightness problem after several complaints by astronomers of light pollution.
NASA's Sun Surfer In 2018, NASA launched the Parker Solar probe, designed to travel within 6 million kilometres of the sun. To put that in context, the Earth is 149 million kilometres from the sun.
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