There’s a supermassive black hole at the center of almost every galaxy in the Universe. How did they get there?
To our Solar System, “close-encounters” with other stars happen regularly – the last occurring some 70,000 years ago and the next likely to take place 240,000 to 470,000 years from now. While this might sound like a “few and far between” kind of thing, it is quite regular in cosmological terms.
An X9.3 class solar flare flashes in the middle of the Sun on Sept. 6, 2017. Credit:NASA/GSFC/SDO If you’re still riding that high from seeing the recent total solar eclipse and you want to keep the party going, now’s your chance to see another of the night sky’s wonders: an aurora
Record-setting Hurricane Irma barreled over the Caribbean islands of St. Martin, St. Barthelemy and Anguilla early Wednesday, destroying buildings and causing major flooding
At the center of the Milky Way Galaxy resides the Supermassive Black Hole (SMBH) known as Sagittarius A* . This tremendous black hole measures an estimated 44 million km in diameter, and has the mass of over 4 million Suns. For decades, astronomers have understood that most larger galaxies have an SMBH at their core, and that these range from hundreds of thousands to billions of Solar Masses.
It’s that time again! This week’s Carnival of Space is hosted by Pamela Hoffman at the Everyday Spacer blog. Click here to read Carnival of Space #525.
The Soyuz MS-04 vehicle is pictured the moment it touches down with the Expedition 52 crew inside comprising NASA astronauts Peggy Whitson and Jack Fisher and Commander Fyodor Yurchikhin of Roscosmos on Sept. 3, 2017, Kazakhstan time.
In accordance with the Big Bang model of cosmology , shortly after the Universe came into being there was a period known as the “Dark Ages”. This occurred between 380,000 and 150 million years after the Big Bang, where most of the photons in the Universe were interacting with electrons and protons. As a result, the radiation of this period is undetectable by our current instruments – hence the name
This summer has been a busy time for NASA. At present, the agency is making the final preparations for the Cassini mission ‘s plunge into Saturn’s atmosphere, monitoring the large Near-Earth Asteroid that recently made a flyby of Earth , marking the 40th anniversary of the historic Voyager missions , and hosting the Summer of Mars at the Kennedy Space Center. In addition to all that, engineers at the Jet Propulsion Laboratory in Pasadena, California, are busy preparing the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) Lander for its scheduled launch in 2018
Successful Static Fire Test Sets SpaceX on Target for Post Labor Day Launch of USAF X-37B Mini-Shuttle Sept. 7
SpaceX conducts successful static fire test of the Falcon 9 first stage rocket at 4:30 p.m. EDT on Aug. 31, 2017 on Launch Complex 39A on NASA’s Kennedy Space Center, Fl., as seen from nearby Playalinda causeway.
Ultraviolet light is what you might call a controversial type of radiation. On the one hand, overexposure can lead to sunburn, an increased risk of skin cancer, and damage to a person’s eyesight and immune system.
Welcome to another edition of Constellation Friday! Today, in honor of the late and great Tammy Plotner, we take a look at the “Southern Cross” – the Crux constellation. Enjoy! In the 2nd century CE, Greek-Egyptian astronomer Claudius Ptolemaeus (aka
In February of 2017 , astronomers from the European Southern Observatory (ESO) announced the discovery of seven rocky planets around the nearby star of TRAPPIST-1. Not only was this the largest number of Earth-like planets discovered in a single star system to date, the news was also bolstered by the fact that three of these planets were found to orbit within the star’s habitable zone .
Venus is one hellish place! Aside from surface temperatures hot enough to melt lead – as high as 737 K (462 °C; 864 °F) – there’s also the sulfuric acid droplets and extreme pressure conditions (92 times that of Earth’s) to contend with! Because of these hostile conditions, exploring Venus’ surface and atmosphere has been an ongoing and significant challenge for space agencies. Hence why NASA’s Jet Propulsion Laboratory (JPL) is looking at some truly innovative and unconventional ideas for future missions to Venus. One of them is the second-generation concept known as the Automaton Rover for Extreme Environments (AREE)
In July of 2015, Russian billionaire Yuri Milner announced the creation of Breakthrough Listen , a decade-long project that would conduct the largest survey to date for signs of extra-terrestrial communications (ETI). As part of his non-profit organization, Breakthrough Initiatives , this survey would rely on the latest in instrumentation and software to observe the 1,000,000 closest stars and 100 closest galaxies
Back in 2012, Elon Musk proposed a revolutionary idea that he described as the “ fifth form of transportation “.
The study of extra-solar planets has turned up some rather interesting candidates in the past few years. As of August 1st, 2017, a total of 3,639 exoplanets have been discovered in 2,729 planetary systems and 612 multiple planetary systems.
An artist’s conception of an NEO asteroid similar to 3122 Florence orbiting the Sun.
This week’s Carnival of Space is hosted by Allen Versfeld at his Urban Astronomer blog. Click here to read Carnival of Space #524 . And if you’re interested in looking back, here’s an archive to all the past Carnivals of Space
In the coming decades, NASA has some rather bold plans for space exploration. By the 2030s, they hope to mount their “ Journey to Mars “.