Starship Asterisk*

http://m.esa.int/Our_Activities/Space_Science/Space_Science/Gravity_waves_detected_in_Sun_s_interior_reveal_rapidly_rotating_core GRAVITY WAVES DETECTED IN SUN’S INTERIOR REVEAL RAPIDLY ROTATING CORE [...] Just as seismology reveals Earth’s interior structure by the way in which waves generated by ...

That is so impressive. The difference in the two images of NGC 6369 especially.

Ann wrote:Good point, Art, and sorry for "diminishing" your post, Margarita!

It's great to have you back!

Ann

¿"Diminishing "? I was simply posting an article about some research that the journal Nature thought worth reporting on!

And, yes, Art, that was a good point.

http://www.nature.com/news/clues-emerge-in-mystery-of-flickering-quasars-1.22376 Clues emerge in mystery of flickering quasars Some of the Universe's most luminous objects have disappeared much faster than expected. Some of the brightest objects in the Universe — quasars — are vanishing rapidly. As...

http://www.nature.com/news/why-astronomers-reluctantly-announced-a-possible-exomoon-discovery-1.22377 Why astronomers reluctantly announced a possible exomoon discovery. After hints leaked out on Twitter, researchers made last-minute decision to reveal what might be the first discovery of a satelli...

bystander wrote: Thank you, Margarita. I must have been in a hurry.

As we say where I live - ¡De nada!

Here's the URL for the above piece from ESA
http://esa.int/Our_Activities/Space_Sci ... y_at_Titan

I was impressed by this paragraph from Alex Teachey's SciAm article https://blogs.scientificamerican.com/observations/are-astronomers-on-the-verge-of-finding-an-exomoon/# And because a discovery of this sort would be a big deal, we have proceeded so far with an abundance of caution, as we have seen ...

I'm hugely impressed by the rapid response, involving several countries and agencies, which enabled the observation of the burst. https://asunow.asu.edu/20170726-discoveries-asu-massive-star-dying-blast-caught-rapid-response-telescopes The gamma-ray blast on June 25, 2016, was detected by two NASA s...

There is a very nice OVERVIEW OF THE CASSINI MISSION from the American Geophysical Union in their journal Eos. It includes a video of the Huygens landing on Titan and a helpful spelling out of the most significant findings that Cassini-Huygens has made in the years it's been at Saturn. https://eos.o...

A great image, but I don't understand the caption. The caption states that the person being photographed in front of the eclipsed sun died a week before the eclipse he was photographed in front of. What am I missing here? I'm going to take a wild leap into the unknown, and posit that the person in ...

Synopsis: Proton Loses Weight https://physics.aps.org/synopsis-for/10.1103/PhysRevLett.119.033001 The most precise measurement to date of the proton mass finds a value that is 3 standard deviations lower than previous estimates. Knowing the proton mass is crucial for analyzing atomic spectra as wel...

This ESA notice from 20 June 2017 has details of what the mission has accomplished. http://sci.esa.int/lisa-pathfinder/59238-lisa-pathfinder-to-conclude-trailblazing-mission/ LISA PATHFINDER TO CONCLUDE TRAILBLAZING MISSION 20 June 2017 After sixteen months of science operations, LISA Pathfinder wil...

starsurfer wrote: OMG you're back?! I've missed you!

Thank you!
It's really odd to "do" astronomy in English after focusing on Spanish for the last year.

These seem to be relevant articles on the same subject: Star formation: Desperately seeking spin Deirdre Coffey https://www.nature.com/articles/s41550-017-0180 A rotating protostellar jet launched from the innermost disk of HH 212 Chin-Fei Lee, Paul. T. P Ho et al https://www.nature.com/articles/s41...

Hi Ann - yes, I do most of my astronomy in Spanish nowadays. And that's where I found the midget binaries. I do often read this sub forum, tho, because bystander finds such interesting breaking news items. (And sometimes I want to read them in English as well as Spanish!)

ALMA Reveals Turbulent Birth of Twin Baby Stars http://www.almaobservatory.org/en/press-release/alma-reveals-turbulent-birth-of-twin-baby-stars/ Friday 30 June 2017 Using the Atacama Large Millimeter/submillimeter Array (ALMA), researchers obtained a critical clue to an underlying problem: how are ...

For interest, this is the link to the published paper. Physics Letters B 4 February 2015, Vol.741:276–279, doi: 10.1016/j.physletb.2014.12.057 Cosmology from quantum potential Ahmed Farag Ali Saurya Das Abstract It was shown recently that replacing classical geodesics with quantal (Bohmian) trajecto...

A friend sent me this and I thought others might enjoy it, too. http://i.imgur.com/iHW7Dwh.png I'm not sure that it's not too big to hot link here even using the img2 code - so here is the URL if necessary! http://i.imgur.com/iHW7Dwh.png Note to admins - please delete the hot link if it is excessive M

Max Planck Institute for Solar System Research Rosetta: Comet’s South Heats Up The southern side of Rosetta’s comet will change dramatically in the next months. Under the influence of the Sun it may lose a surface layer of several meters. February 09, 2015 The northern and southern hemisphere of Ro...

From the Wikipedia article on Type 1a Supernova, linked to in the ESO science release excerpted in the opening post: Double degenerate scenarios raise questions about the applicability of Type Ia supernovae as standard candles , since total mass of the two merging white dwarfs varies significantly,...

Also see http://asterisk.apod.com/viewtopic.php?f=31&t=34424

When I first glanced at this news release I assumed it was related to this thread , which also treats of Cepheids found through the VISTA programme, but it is a separate piece of research. I haven't yet been able to locate the article in ApJL, but the arXiv version is available. Rochester Institute ...

I've found this public lecture, delivered in November 2013 , to be very useful in giving me background information about comets and the missions that have explored them. It has some very interesting images, and the lecturer, the Gresham Professor in Astronomy, Dr Carolin Crawford, is an excellent sp...

Many thanks. There's discussion about this here at unmannedspaceflight.com Later edit: this 2010 press release from NASA has info about the Hartley 2 ejecta that geck mentioned Nov. 18, 2010: NASA has just issued a travel advisory for spacecraft: Watch out for Comet Hartley 2, it is experiencing a s...