Alan Stern

43.8K posts

Alan Stern banner
Alan Stern

Alan Stern

@AlanStern

Planetary Scientist. Flown Commercial Research Astronaut. Pilot. Author. Speaker. Dad. Explorer. Optimist. Not in that order.

Niwot, CO Katılım Temmuz 2008
1.6K Takip Edilen39.2K Takipçiler
Alan Stern retweetledi
Southwest Research Institute
Southwest Research Institute@SwRI·
Happy Birthday, Tom Slick, Jr. (born May 6, 1916)! This NASA image taken by the Hubble Space Telescope, which launched in 1990, shows a colorful cluster of stars at the center of the Milky Way galaxy as it appeared on May 6, 2012. ow.ly/fgiY50YVyoc
Southwest Research Institute tweet media
English
0
2
0
166
Alan Stern retweetledi
reaperofmars
reaperofmars@rob5561·
@AstroMikeMerri @plutosavior @AlanStern @DrPhiltill @nasaman58 @b0yle Whereas this argument paints science in a great light.... Tbh there is no logical reason Pluto shouldn't be a planet. The only reason they made that distinction was do that the solar system didn't end up with 20 planets but it's not actually based on anything substantial.
English
1
2
4
335
Alan Stern retweetledi
Blue Origin
Blue Origin@blueorigin·
📍 Lunar Plant 1 Testing in Florida continues for Endurance. Radio frequency compatibility testing is on deck.
Blue Origin tweet mediaBlue Origin tweet media
English
40
356
3.1K
119.8K
Alan Stern retweetledi
Voyager Technologies
Voyager Technologies@voyagertech_·
ICYMI: Hear from our Chairman & CEO @dylan Taylor on @Stocktwits Boardroom Exclusives about our focus areas - space infrastructure, Golden Dome and power and propulsion for satellite maneuvering - and life on the Moon. ​ $VOYG #AcceleratingtheAdvantage #MissionReady
Stocktwits Boardroom Exclusives@ST_BoardroomX

Presented by our partners at @voyagertech_: Chairman and CEO Dylan Taylor joins Boardroom Exclusives to talk about the company’s $265 million backlog, the "picks and shovels" driving the new era of space infrastructure, and why the potential SpaceX IPO is a rising tide for the entire sector. $VOYG

English
2
6
26
2.2K
Alan Stern retweetledi
National Air and Space Museum
National Air and Space Museum@airandspace·
65 years ago today, Alan Shepard became the first American in space when he launched on a suborbital mission aboard his Mercury "Freedom 7" spacecraft. The mission lasted 15 minutes and 22 seconds. More on Shepherd's history making flight: s.si.edu/42bARq0
National Air and Space Museum tweet media
English
5
58
251
6.2K
Alan Stern retweetledi
Virgin Galactic
Virgin Galactic@virgingalactic·
Sometimes the work just speaks for itself. Great day in the office last week.
English
21
60
337
23.3K
Alan Stern retweetledi
Elon Musk
Elon Musk@elonmusk·
Beautiful machines in space
English
8K
12.8K
109.6K
60.7M
Alan Stern retweetledi
The Pluto Diaries
The Pluto Diaries@Plutoliveshere·
#ThatsNoMoon That's Charon, the other 1/2 of this double planet!😄Though often called the largest satellite of the Pluto System, Charon is 1/2 my radius & 1/8 my mass. We orbit a common center of gravity which lies outside both of us. This meets the criteria for a binary system🤩
The Pluto Diaries tweet mediaThe Pluto Diaries tweet media
English
1
14
31
859
Alan Stern retweetledi
National Air and Space Museum
National Air and Space Museum@airandspace·
Mercury astronaut Scott Carpenter was the second American to orbit the Earth. He also served as an aquanaut, spending 30 days in 1965 living and working in a sea-floor habitat 205 feet below the surface. Carpenter was born on this day in 1925.
National Air and Space Museum tweet media
English
6
60
407
8.4K
Alan Stern retweetledi
Charles A. Lurio
Charles A. Lurio@TheLurioReport·
I saw Clyde Tombaugh speak at the Stellafane meeting in Springfield, Vermont in the late 1980s. “De-planetizing” Pluto was not only scientifically silly, but offensive to his memory and the humanity of science. @AlanStern , @rookisaacman.
Senator Jerry Moran@JerryMoran

In 1930, Clyde Tombaugh from Burdett, Kansas, discovered Pluto, & I appreciate @NASAAdmin’s interest in reclassifying Pluto as a planet and restoring credit for the discovery of the planet to Clyde Tombaugh.⬇️

English
2
3
12
992
Alan Stern
Alan Stern@AlanStern·
@plutosavior @StartsWithABang @DrPhiltill @nasaman58 I have given up on Siegel. He is not a scientist in any real sense, evidence matters not to him. Argument matters mot. Logic matters not. He only hears what he wishes to hear, which means what he agrees with.
English
1
0
2
22
Ethan Siegel
Ethan Siegel@StartsWithABang·
The science case for why Pluto still isn’t a planet Sure, we lived in a simpler time when we had 9 planets, including Pluto. But we've learned a whole lot since 1929, and can't in good conscience ignore it to suit our comforts. bigthink.com/starts-with-a-…
English
20
10
37
1.9K
Adam Frank
Adam Frank@AdamFrank4·
Scientist shocks world demanding everyone just shut up about Pluto! 😀 Actually, there's a VERY cool science reason why Pluto was kicked out of the planet club. It's all about the rest of the solar system. Today's @ForbesTech column forbes.com/sites/adamfran…
English
16
2
16
8K

Keşfet

@AstroMikeMerri @plutosavior @DrPhiltill @nasaman58 @b0yle @rob5561 @dylan @Stocktwits