Featured Posts
Universe Today
17 Jun 2020, 09:32 UTC
General Relativity predicts that gravity and inertia are often indistinguishable. This has now been proven under the strongest conditions to date by precisely tracking the motion of a pulsar.
Pulsars Confirm One of Einstein’s Best Ideas, That Freefall Really Feels Like You’re Experiencing a Lack of Gravity
17 Jun 2020, 09:32 UTC
General Relativity predicts that gravity and inertia are often indistinguishable. This has now been proven under the strongest conditions to date by precisely tracking the motion of a pulsar.
Universe Today
16 Jun 2020, 18:38 UTC
Over the years, scientific estimates of potential intelligent life in our galaxy have ranged widely. Some estimates say just one (only us Earthlings) to just a handful, to possibly thousands or even millions. A new study attempts to quantify the number of other worlds we could potentially talk to by estimating the number of intelligent civilizations within the Milky Way that are actively communicating.
New Estimate Calculates There Could be 30 Intelligent Civilizations Communicating Across the Milky Way
16 Jun 2020, 18:38 UTC
Over the years, scientific estimates of potential intelligent life in our galaxy have ranged widely. Some estimates say just one (only us Earthlings) to just a handful, to possibly thousands or even millions. A new study attempts to quantify the number of other worlds we could potentially talk to by estimating the number of intelligent civilizations within the Milky Way that are actively communicating.
Bad Astronomy
16 Jun 2020, 13:00 UTC
When you look up at the night sky, you can see thousands of stars. The fact that they're there at all implies they had a beginning, and we know stars can exist for billions of years. We see them die, and we see them being born. It's not a huge leap of logic to presume that, given the finite age of the Universe, there must have been a time when the very first stars were born.
When were the *very* first stars born? Earlier than we can see, even with Hubble
16 Jun 2020, 13:00 UTC
When you look up at the night sky, you can see thousands of stars. The fact that they're there at all implies they had a beginning, and we know stars can exist for billions of years. We see them die, and we see them being born. It's not a huge leap of logic to presume that, given the finite age of the Universe, there must have been a time when the very first stars were born.
NASASpaceFlight.com
16 Jun 2020, 10:36 UTC
Two intrepid spacecraft are dancing with the Sun and making great progress toward the goal of learning more about our star. After NASA announced that Parker Solar Probe (PSP) had sent the “Status A” beacon after its fifth close flyby of the Sun, the European Space Agency (ESA) has announced that its Solar Orbiter has completed its first Perihelion.
NASA and ESA Solar Stalkers mark milestones
16 Jun 2020, 10:36 UTC
Two intrepid spacecraft are dancing with the Sun and making great progress toward the goal of learning more about our star. After NASA announced that Parker Solar Probe (PSP) had sent the “Status A” beacon after its fifth close flyby of the Sun, the European Space Agency (ESA) has announced that its Solar Orbiter has completed its first Perihelion.
Starts With a Bang!
15 Jun 2020, 14:01 UTC
One of astronomy’s biggest surprises came in 2007, when a mysterious green object was found.
This Is Why Some Galaxies Have A Green Glow, Even Though There Are No Green Stars
15 Jun 2020, 14:01 UTC
One of astronomy’s biggest surprises came in 2007, when a mysterious green object was found.
SciTech Daily
15 Jun 2020, 09:10 UTC
A new set of precision distance measurements made with an international collection of radio telescopes have greatly increased the likelihood that theorists need to revise the “standard model” that describes the fundamental nature of the Universe.
Standard Model of Universe Wrong? New Precision Distance Measurements Inconsistent With Theory
15 Jun 2020, 09:10 UTC
A new set of precision distance measurements made with an international collection of radio telescopes have greatly increased the likelihood that theorists need to revise the “standard model” that describes the fundamental nature of the Universe.
Universe Today
12 Jun 2020, 18:52 UTC
Once the stuff of science fiction, the possibility that humans could establish a permanent settlement on Mars now appears to be a genuine possibility. While doing so represents a major challenge and there are many hurdles that still need to be overcome, the challenge itself is inspiring some truly creative solutions. But what is especially interesting is how these same solutions can also address problems here on Earth.
Ideas for Sustainable Cities and Urban Farming… on Mars?
12 Jun 2020, 18:52 UTC
Once the stuff of science fiction, the possibility that humans could establish a permanent settlement on Mars now appears to be a genuine possibility. While doing so represents a major challenge and there are many hurdles that still need to be overcome, the challenge itself is inspiring some truly creative solutions. But what is especially interesting is how these same solutions can also address problems here on Earth.
Starts With a Bang!
12 Jun 2020, 14:01 UTC
It happened 13.8 billion years ago, so why hasn’t the radiation all passed over us by now?
Ask Ethan: Why Doesn’t The Afterglow Of The Big Bang Eventually Fade Away?
12 Jun 2020, 14:01 UTC
It happened 13.8 billion years ago, so why hasn’t the radiation all passed over us by now?
Sky and Telescope
12 Jun 2020, 10:07 UTC
From beyond Pluto, see how stars shift in NASA's New Horizons' view of the night sky.
New Horizons' "Alien View" from the Outer Solar System
12 Jun 2020, 10:07 UTC
From beyond Pluto, see how stars shift in NASA's New Horizons' view of the night sky.
Centauri Dreams
11 Jun 2020, 14:35 UTC
Finding out that Titan is migrating away from Saturn should cause little surprise. Our own Moon moves away from the Earth at about 38 millimeters per year (even as Earth’s rotation slows ever so slightly, lengthening the day by 23 microseconds every year). Titan’s gravitational pull on Saturn causes frictional processes inside the giant world that ultimately impart energy to Titan, moving it away from its host in a similar way. The surprise attendant to a new paper on this phenomenon is the size of the movement, about 100 times greater than had been expected.
