Recent content by Helio

It looked like a glory roller-less coaster ride for celebrities. Perry stated that they “put the ass in astronaut.” I look forward to real space adventures and science from Blue Origins. They have the expertise with great engineers and scientists.

But are starless "haloes" of DM hollow in their clumpy structure? I read that although DM extends beyond the dimensions of their respective galaxy, which explains the non-Keplerian orbits of stars, it doesn't mean there is no DM in the central bulge. Thus even the DM mass has a central bulge...

Yes. I keep hoping I'll catch it just right, but I've yet to see a sunspot with the naked eye. There are a number of rare accounts of observed sunspots going back several thousand years, IIRC. The Chinese may have been the first to note them. But in modern times with telescopes to allow...

Hmmm, I thought more people would be curious about some of these. In case some are curious.... 1) Galileo, in support of his theory on falling object, dropped different sized balls from the Tower of Pisa to argue against the Aristotelian view that they would fall at the same rate. Not likely...

So… 7) is False. 19 more await your opinion. 😀

Initially, Galileo looked directly at it. A friend gave him the projection idea soon enough. 😀

No, which is why I mentioned it. When the Sun is setting in the west and it becomes dimmer than normal due to heavy air particles, then it can be easy on the eye. His telescope likely magnified a diminished Sun to cause it to become even appear dimmer. In the day the pupil is smaller, so...

Sometimes NASA uses more general terms than they should because their articles are often for all ages. M104 is a lenticular galaxy.., Sky &Telescope I think elliptical galaxies were once lenticular during their growing period, but they kept gobbling stars and galaxies, which destroys spiral...

The Sombrero galaxy (M104) is a lenticular galaxy, which are galaxies that lack spiral arms.

You might find some of these fun to learn about. We tend to simplify what really happened, but the real story greatly adds to the discovery. This is only a mere sample of things I have enjoyed reading about. So think of this as a fun quiz. I think you’ll find some of these stories...

I assume they were colder than usual on their return. ;)

Wow! That’s gotta be a blast. I hope videos of those presentations become available. This show looks big enough to move to other cities, as found in other industries. I’d go if it were closer.

Yep. The odds are far better that it will blow in the next 50,000 years.

It’s hyperbole to grab attention, IMO. As a protoplanet forming in a thick part of the early accretion disk, it grew quickly to a mass that allowed it to capture the great abundance of hydrogen. This is what the protosun was doing on or before this time. But a star is the main collapsing...

Thanks for the correction. I didn’t check hard enough.