Latest / Space News Today / Anomalies in India’s Launch| SpaceX’s Starlink Expansion| Cosmic Dawn Signals: Your Daily Space...
Transcript
- 0:00Welcome to Astronomy Daily. I'm Anna.
- 0:03>> And I'm Avery. Hello everyone. Thanks
- 0:05for joining us. Today is January 12th,
- 0:082026. And we've got a full show.
- 0:11Launches and anomalies, regulatory moves
- 0:14that reshape low Earth orbit, a brand
- 0:16new exoplanet observatory on its way, a
- 0:19flash from the cosmic dawn, fresh
- 0:22results about what powers the sun's
- 0:24strongest flares, and a galaxy discovery
- 0:26that looks surprisingly familiar for the
- 0:29early universe.
- 0:30>> Yep, six stories, all of them important
- 0:33in different ways. We'll start with this
- 0:35morning's launch news from India.
- 0:37India's polar satellite launch vehicle,
- 0:40the PSLVc62
- 0:42lifted off from Satic Darwin Space
- 0:44Center this morning carrying EOS-N1
- 0:48described as an advanced Earth
- 0:50observation/military
- 0:52surveillance satellite along with a
- 0:54batch of co-passenger payloads. The
- 0:56mission marked ISRO's first launch
- 0:58attempt since a PSLV anomaly in May
- 1:012025. So, there was a lot writing on it,
- 1:04>> right? The liftoff itself looked
- 1:07nominal, but ISRO later reported an
- 1:09anomaly near the end of the third stage,
- 1:12the PS3. Initial public statements
- 1:15indicate a deviation in the third stages
- 1:17phase, and that ISRO has begun a
- 1:20detailed analysis. At this stage, it's
- 1:22not yet confirmed whether the primary
- 1:25satellite and co-passengers reached
- 1:27their planned orbits. Those early stage
- 1:30deviations can be especially challenging
- 1:32because they often happen during staging
- 1:34or engine cutoff phases where timing and
- 1:37velocity are critical. ISRO has a long
- 1:40successful history with the PSLV family.
- 1:43But even reliable vehicles can have
- 1:45single event anomalies. The important
- 1:47thing is how the agency responds.
- 1:49Recovering telemetry, diagnosing the
- 1:52root cause, and transparently sharing
- 1:54findings so confidence can be rebuilt.
- 1:56>> Absolutely. From a broader perspective,
- 1:59this mission also demonstrates the
- 2:01global nature of small sat ride shares
- 2:04and the strategic value that Earth
- 2:06observation satellites deliver, whether
- 2:08for commercial or defense purposes.
- 2:11We'll keep an eye on ISRO's follow-up.
- 2:13They typically publish an analysis after
- 2:15they comb through flight data.
- 2:17>> And we'll link to the official
- 2:18statements in the episode notes for
- 2:20folks who want the primary sources. Next
- 2:23up in the US, the Federal Communications
- 2:25Commission granted SpaceX authorization
- 2:28to deploy an additional 7500 Starlink
- 2:32second generation satellites. That's a
- 2:34partial approval within a broader SpaceX
- 2:37request for up to 15,000 Gen 2.
- 2:40>> This is a big step for the company's
- 2:42plan to upgrade Starlink's capabilities.
- 2:45higher throughput, lower latency, and
- 2:47expanded services, including directto
- 2:49cell connectivity and higher data rates.
- 2:52The FCC's partial grant means SpaceX can
- 2:55move forward with a substantial
- 2:56expansion while regulators and other
- 2:58stakeholders continue to evaluate the
- 3:01remainder of the proposal. There are a
- 3:03couple of important implications
- 3:05operationally. Many more Starlink nodes
- 3:08in low Earth orbit will increase global
- 3:10broadband capacity, particularly for
- 3:13underserved and rural regions. But it
- 3:16also intensifies ongoing concerns about
- 3:18orbital crowding, radio frequency
- 3:21coordination, and long-term space
- 3:23sustainability.
- 3:24>> Right? Competitors and some academics
- 3:27have raised worries about spectrum
- 3:29interference, orbital dominance, and the
- 3:31cumulative effect of so many satellites
- 3:33on debris risk and astronomical
- 3:35observing. SpaceX says it will
- 3:37coordinate reconfiguration steps, for
- 3:39example, lowering orbits for safety and
- 3:42using de-orbiting strategies, but
- 3:44regulators and the international
- 3:46community will be watching closely.
- 3:48>> So, this is both a technical and policy
- 3:51story. The authorization moves the
- 3:53technology forward, but it also keeps
- 3:56the conversation going about how to
- 3:58manage low Earth orbit responsibly as it
- 4:00becomes busier.
- 4:01>> On a more exploratory note, SpaceX
- 4:04successfully launched a Falcon 9 right
- 4:07share mission that included NASA's
- 4:09Pandora satellite. Pandora is a compact
- 4:12astrophysics mission designed to study
- 4:14the atmospheres of at least 20
- 4:16exoplanets and their host stars over
- 4:18about a year of operations. Pandora's
- 4:21key strength is that it's optimized to
- 4:23disentangle the light coming from an
- 4:24exoplanet and the star it orbits.
- 4:27Stellar activity, spots, flares, and
- 4:29magnetic variability can mimic or mask
- 4:32atmospheric signals from exoplanets.
- 4:34Pandora carries a 045 meter telescope
- 4:37and a suite of instruments aimed at
- 4:39measuring both the stars variability and
- 4:42the planet's transmission signals,
- 4:44improving the accuracy of atmospheric
- 4:46composition measurements. That kind of
- 4:48targeted mission is exactly what the
- 4:50exoplanet community needs. Now, large
- 4:52observatories like JWST do outstanding
- 4:56detailed work, but focused missions such
- 4:59as Pandora can observe many systems in a
- 5:02systematic way and help build context.
- 5:04Pandora will feed into priorities for
- 5:07future larger missions that aim to
- 5:09detect specific molecules, even bio
- 5:11signatures in exoplanet atmospheres.
- 5:14It's also another example of efficient
- 5:16ride share launches enabling specialized
- 5:19science payloads. Pandora joining a
- 5:22larger commercial launch shows how the
- 5:24landscape of getting small science
- 5:26spacecraft to orbit has matured.
- 5:28>> Turning to the distant universe,
- 5:30astronomers recently reported detecting
- 5:32a very brief 10-second flash that
- 5:35originated roughly 13 billion lighty
- 5:37years away. This is being interpreted as
- 5:40light from an extremely distant
- 5:42supernova. One of the farthest, if not
- 5:44the farthest, stellar explosions
- 5:46observed so far.
- 5:47>> The detection combined data from
- 5:49multiple instruments, including wide
- 5:52field X-ray monitors and follow-on
- 5:54observations by facilities such as the
- 5:56James Web Space Telescope. The event is
- 5:59remarkable because it lets astronomers
- 6:01study stellar death and the environments
- 6:04of massive stars in the early universe
- 6:06when galaxies were young and metal
- 6:08content was low.
- 6:10>> Observing such distant explosions is
- 6:12rare because cosmological red shift and
- 6:14faintness make them hard to spot. When
- 6:17one is found, it can reveal the
- 6:19properties of the progenitor star, the
- 6:21host galaxy, and the intergalactic
- 6:23medium at a time when cosmic structure
- 6:25was still forming. There are also ties
- 6:28to gamma ray bursts and extreme
- 6:30transient phenomena. Researchers will be
- 6:32investigating whether models for super
- 6:34luminous supernova or exotic explosions
- 6:37match this event.
- 6:38>> This detection emphasizes how
- 6:40multi-wavelength coordinated observing
- 6:43campaigns. Fast alerts from one
- 6:45instrument followed by deep telescope
- 6:48follow-up are essential for studying the
- 6:50transient universe, especially at high
- 6:53red shift. Back closer to home, solar
- 6:55physicists have new insight into the
- 6:57engine behind the sun's most violent
- 7:00flares and the intense gamma rays they
- 7:02sometimes unleash. Researchers
- 7:04identified a previously unrecognized
- 7:06population of extremely energetic
- 7:08particles in the sun's upper atmosphere
- 7:11that appear to be a major source of
- 7:13those high energy photons. The finding
- 7:16comes from combining longduration
- 7:18observations and specialized instruments
- 7:20capable of measuring particle
- 7:22populations and gammaray signatures. The
- 7:25upshot is that magnetic reconnection and
- 7:28particle acceleration processes in flare
- 7:31regions are more complex than some
- 7:33simple models suggested. In particular,
- 7:36the upper layers of the solar
- 7:37atmosphere, where magnetic fields
- 7:39reconnect and release energy, can trap
- 7:42and accelerate particles to mega
- 7:44electron volts, energies that then
- 7:46produce gamma rays.
- 7:48>> This matters for space weather
- 7:49prediction. Gamma rays and energetic
- 7:52particles accompany the most extreme
- 7:54flares and can affect satellites, radio
- 7:56communications, and radiation exposure
- 7:59for astronauts and high-flying aircraft.
- 8:01By better understanding where and how
- 8:03particles are accelerated, models of
- 8:06flare impact and forecasts of space
- 8:08weather can be improved.
- 8:09>> It's also a good reminder that our sun
- 8:12still surprises us. Even with decades of
- 8:15observations and multiple solar
- 8:17missions, new diagnostics and longer
- 8:19observation windows revealed previously
- 8:22hidden physics.
- 8:23>> Finally, one of the most visually
- 8:25intriguing stories. Astronomers have
- 8:28identified a barred spiral galaxy whose
- 8:30light comes from approximately 11.5
- 8:34billion years ago about 2 billion years
- 8:36after the Big Bang. If confirmed, this
- 8:39object would be among the earliest bars
- 8:41and spiral structures seen in the
- 8:43universe.
- 8:44>> Bars are elongated stellar structures
- 8:47that can drive internal evolution in
- 8:49galaxies. They funnel gas toward the
- 8:51center, trigger star formation, and
- 8:54rearrange angular momentum. Finding a
- 8:57well-defined bar so early means that
- 8:59disc galaxies could develop mature
- 9:01internal structures sooner than many
- 9:03models predicted.
- 9:04>> The discovery was enabled by deep
- 9:06spectroscopically confirmed imaging from
- 9:09powerful telescopes, Hubble and other
- 9:11facilities and careful analysis of the
- 9:14galaxy's stellar and morphological
- 9:16properties. The object sits in a growing
- 9:18collection of surprising early galaxies.
- 9:21Some are massive and evolved earlier
- 9:23than expected. Others show complex
- 9:26morphologies previously thought to
- 9:28require long time scales to form.
- 9:30>> These results feed directly into galaxy
- 9:33formation theory. They force modelers to
- 9:35consider rapid disc settling, efficient
- 9:38angular momentum redistribution and
- 9:40other processes that could build bars
- 9:42early. It's an exciting reminder that
- 9:44the early universe may have been both
- 9:47more active and more varied than our
- 9:49simplest expectations. So looking across
- 9:52today's stories, we have an operational
- 9:54launch with an anomaly that will require
- 9:56analysis, a regulatory decision that
- 9:59reshapes near Earth space, a dedicated
- 10:02exoplanet mission now in orbit, a signal
- 10:05from the cosmic dawn giving a rare
- 10:07window into early stellar deaths,
- 10:10improved understanding of particle
- 10:12acceleration on the sun, and an early
- 10:14galaxy that challenges our ideas of how
- 10:17quickly structure forms. It's a nice
- 10:19mix, isn't it? Local space operations
- 10:22and policy, near-earth infrastructure
- 10:24and its implications, targeted planetary
- 10:27science, time domain extragalactic
- 10:30astronomy, solar physics, and
- 10:32cosmological structure formation. For
- 10:34listeners, it shows how broad and
- 10:36interconnected modern astronomy and
- 10:38space activity are.
- 10:40>> Two quick takeaways. First, watch for
- 10:42ISRO's followup on the PSLV anomaly.
- 10:46that will affect launch schedules and
- 10:47the broader small sack community.
- 10:50Second, the more we push instruments and
- 10:52coordination like fast transients and
- 10:54small science satellites, the more
- 10:57corner cases we find that reshape
- 10:59theory. Discoveries often come when new
- 11:02instruments or different organizational
- 11:04approaches are applied. And for the
- 11:06non-scientists out there wondering what
- 11:08to look for tonight, Jupiter is still a
- 11:10good target if you're out stargazing.
- 11:12and aurora watchers should keep an eye
- 11:14on space weather forecasts as the sun's
- 11:16activity continues to produce strong
- 11:18events.
- 11:19>> That's it for today's episode. If you
- 11:21enjoyed the show, subscribe to Astronomy
- 11:23Daily on your preferred podcast
- 11:25platform. You can find links, source
- 11:28articles, and further reading in the
- 11:29episode notes so you can dig deeper if
- 11:31you wish.
- 11:32>> We love hearing from listeners. If you
- 11:34have questions, science topics you'd
- 11:36like us to cover, or feedback about the
- 11:38show, drop us a note through the
- 11:40Astronomy Daily website. You can find us
- 11:42at astronomydaily.io.
- 11:44>> Thanks for listening. I'm Avery
- 11:46>> and I'm Anna. Clear skies and we'll see
- 11:49you tomorrow on Astronomy Daily.
- 11:51>> Astronomy Daily.
- 12:10Stories were told.