Pinned Tweet
Caleb Henry@ChenrySpace
Jul 20
It is with great pleasure that I can officially say the OneWeb book is fully written! Read below to learn about the roadmap to publication.

chenryspace.substack.com/p/oneweb-book-…
4
4
50
4,423
Caleb Henry retweeted
Eric Berger
@SciGuySpace
Oct 30
The launch crisis is real, analysts say. Also, some interesting comments from Telesat’s CEO on whether Starship will launch commercial satellites.

arstechnica.com/space/2026/10/…
91
60
646
109,266
Caleb Henry retweeted
Main Engine Cut Off@WeHaveMECO
Oct 29
🎙️ @ChenrySpace of @QuiltySpace joined me (live in studio!) to talk about the launch shortage, SpaceX going their own way, what the future holds for Amazon, what new launch vehicles are best positioned to fill gaps, and so much more. Have a listen!

mainenginecutoff.com/podcast/341
1
3
19
1,241
Caleb Henry retweeted
Filip Kocian
@fikocian
Jul 30
European space industry contracts have basically two modes
1) 7 billion for Airbus, no questions asked
2) 3M EUR study contracts; here is a portfolio of 20 companies participating
4
5
64
4,214
Caleb Henry retweeted
Eric Berger
@SciGuySpace
Jul 10
Super impressive landing by China's Long March 10B rocket.
Ace of Razgriz@raz_liu
Jul 10
Catching footage
45
49
1,114
73,601
Caleb Henry retweeted
Quilty Space@QuiltySpace
Jul 2
Stocks return to Earth in June. Our Core (-22%) and Frontier (-39%) indexes underperformed the market (S&P 500; -1%) for the first time since March. All market sectors declined and 5/6 fell double digits.

Download our free monthly Market Monitor: …a-42a7-8698-047db66dc9c9.filesusr.com/ugd/e1a31a_ff8…
0
3
3
885
Caleb Henry@ChenrySpace
Jul 2
Lots of small launch startups pursued Planet Labs as a customer. Most got rejected. This is a significant customer endorsement for Isar Aerospace, especially seeing that it's a Pelican satellite and not just doves.
Isar Aerospace
@isaraerospace
Jul 2
Sovereign space capabilities: We signed a launch agreement with @Planet Labs Germany that will put a German-built satellite on a German-built rocket – a national first. Building sovereign, resilient space capabilities for Europe – partnerships like this are how it happens. Read g7cKAA
0
0
23
2,248
Caleb Henry retweeted
Chris Weber
@Weber44Chris
Jul 2
Last few launches were big for @AmazonLeo - bringing us to 390+ satellites deployed, enough to support continuous service across initial latitudes.

Still lots of work ahead – including raising all these new satellites to their assigned altitude – but we’ve completed enough rvice this yr, and future missions just add coverage and capacity.

Thanks @ulalaunch Atlas V for getting us to this point. Ready for 40+ sat launches on Vulcan.

🚀 🚀 🚀
8
31
122
31,734
Caleb Henry retweeted
Telesat
@Telesat
Jul 2
Reliable connectivity can be lifesaving in the aftermath of a natural disaster. Telesat was honoured to do its part to assist Venezuelans following June 24’s powerful earthquakes by donating satellite capacity to Top Comunications – a leading local telecom – in support of orts.
Read more here: telesat.com/press/press-re…
1
4
6
742
Caleb Henry retweeted
Nancy Grace Roman Space Telescope
@NASARoman
Jul 1
Congrats on an out-of-this-world discovery, TESS!

NASA’s TESS mission used the microlensing detection method to find a planet out in the Milky Way’s disk. Roman will use the same method to find new worlds in the center of the Milky Way!
Graphic titled "Hunting for Exoplanets," highlights search areas of NASA's upcoming Roman Space Telescope, the retired Kepler Space Telescope, and NASA’s TESS. The Milky Way covers most of the graphic with search areas overlaid. TESS's area is a central orange dot and a large lighter orange radius, covering a large portion of the bottom half of the graphic with the words "360 degree sphere, 150 light years," meaning a 150 light year radius from Earth.Kepler's area is in yellow, a small cone starting at the orange dot in the center and branching to the left, the description for Kepler states "12 degree cone, 2,000 light years." And Roman's area is a blue cone reaching from the orange dot to the bright spot at the center of the Milky Way with the description, "1.6 degree cone, 25,000 light years."
5
89
435
10,370
Caleb Henry retweeted
Michael Sheetz
@thesheetztweetz
Jun 30
USMNT, bring the World Cup home and Blue Ghost will bring the ball to the Moon! 💪🌖🏆🇺🇸
5
11
107
7,795
Caleb Henry@ChenrySpace
Jul 1
Round two, here we go.
Mike Dano@mikeddano
Jun 30
Woah! 160 MHz in upper C-band to be auctioned next summer!
0
0
4
1,635
Caleb Henry retweeted
Peter B. de Selding@pbdes
Jun 30
.@Thales_Alenia_S wins contract to build GEO-orbit telecoms sat for @eshailsat & @turksat, which will share capacity. Eshail-3/Turksat Biruni will use Thales's Space Inspire software-defined design. Launch date TBD.
1
5
10
1,338
Caleb Henry retweeted
Main Engine Cut Off@WeHaveMECO
Jun 30
Looking forward to talking with @SciGuySpace and @ChenrySpace in just about an hour! Thanks for having me, @arstechnica.

youtube.com/watch?v=cyJEFj…
0
7
50
14,063
Caleb Henry retweeted
Rocket Lab
@RocketLab
Jun 29
Rocket Lab 🤝 Iridium – a powerful combination.

Our founder and CEO @Peter_J_Beck is joined by @IridiumComm’s CEO Matt Desch @IridiumBoss and Rocket Lab CFO Adam Spice to discuss how this acquisition will unlock and accelerate our future in space applications.

Links in the comments.
36
212
1,964
76,151
Caleb Henry retweeted
Jack Kuhr
@JackKuhr
Jun 29
How to win in space:

pick markets that are large

but not large enough for SpaceX to bother
Jack Kuhr
@JackKuhr
Jun 29
Actually they are buying Iridium for the exact opposite reason, to not rival SpaceX.

Smartly staying well clear of SpaceX’s core markets.
9
11
188
14,876
Caleb Henry retweeted
European Space Agency
@esa
Jun 25
After 8 years travelling across the inner Solar System, BepiColombo has switched off its ion engines.

The ESA/JAXA mission is now entering its final approach to Mercury, with key arrival steps starting in September.

🔗 esa.int/Enabling_Suppo…

@JAXA_en @esascience @esaoperations
12
238
1,038
56,926
Caleb Henry@ChenrySpace
Jun 29
Both these companies have must-read books about them.

For Rockets Lab, read Ashlee Vance's When the Heavens Went on Sale.

For Iridium, read John Bloom's Eccentric Orbits.

These are my two most referenced space books. Both profile companies that transformed the industry.
Ashlee Vance
@ashleevance
Jun 29
ohhhhhhhh
4
8
77
10,299
Caleb Henry retweeted
Rocket Lab
@RocketLab
Jun 29
Rocket Lab is acquiring Iridium Communications Inc – one of the most transformative deals in the space industry.

By combining our launch capability and satellite manufacturing with @IridiumComm’s global satellite communications network and rare spectrum, Rocket Lab becomes a launching, tier-1 space power, delivering critical communications capability to millions of users worldwide.

Full details and important information: bit.ly/4eyKLL4
299
1,084
7,379
1,431,013
Caleb Henry@ChenrySpace
Jun 29
Wow wow wow wow wow!

I fully expected Iridium to be bought within 12-18 months of Globalstar, but figured Amazon or Blue Origin would be the buyer.

This is a really strong move by Rocket Lab.

Congrats @Peter_J_Beck, and welcome to the constellation club.
Iridium
@IridiumComm
Jun 29
#HUGENEWS Iridium has entered into an agreement to be acquired by @RocketLab. This transaction is a defining moment for the industry, creating a vertically integrated space powerhouse positioned to unlock critical space applications. → bit.ly/4vMlpiT 🛰️ 🌎 🚀
3
15
256
27,734
Load more