Christian Graca
@christiangraca.bsky.social
Reposted by Christian Graca
Nancy Grace Roman - honoured by the newest telescope in space - spearheaded a pioneering programme as NASA’s first chief astronomer, says Robert W. Smith
go.nature.com/4A1qQgu
go.nature.com/4A1qQgu
‘Mother of Hubble’: how Nancy Grace Roman ushered in a new era of astronomy
The scientist honoured by the newest telescope in space spearheaded a pioneering programme as NASA’s first chief astronomer.
go.nature.com
September 8, 2026 at 10:47 AM
Nancy Grace Roman - honoured by the newest telescope in space - spearheaded a pioneering programme as NASA’s first chief astronomer, says Robert W. Smith
go.nature.com/4A1qQgu
go.nature.com/4A1qQgu
Reposted by Christian Graca
6 studies show nanopore sequencing ID'ing bloodstream infections in <3.5 hrs, cutting AMR turnaround by up to 20 hrs, and catching culture-negative pathogens standard tests missed entirely. Real-time genomics is changing infectious disease response. https://bit.ly/3S8Fxxi
August 31, 2026 at 4:07 PM
6 studies show nanopore sequencing ID'ing bloodstream infections in <3.5 hrs, cutting AMR turnaround by up to 20 hrs, and catching culture-negative pathogens standard tests missed entirely. Real-time genomics is changing infectious disease response. https://bit.ly/3S8Fxxi
Reposted by Christian Graca
A Feb 2026 expedition to Angola's remote Lisima plateau — source of the Congo, Okavango, Zambezi & Cuanza rivers — documented 103 dragonfly species (8 new), 47 grasshopper taxa, and 1,000+ butterflies & moths. Full story: buff.ly/PuV2mKh
📸 The Wilderness Project buff.ly/ApwyfJX
#NewSpecies #Angola
📸 The Wilderness Project buff.ly/ApwyfJX
#NewSpecies #Angola
August 27, 2026 at 1:01 AM
A Feb 2026 expedition to Angola's remote Lisima plateau — source of the Congo, Okavango, Zambezi & Cuanza rivers — documented 103 dragonfly species (8 new), 47 grasshopper taxa, and 1,000+ butterflies & moths. Full story: buff.ly/PuV2mKh
📸 The Wilderness Project buff.ly/ApwyfJX
#NewSpecies #Angola
📸 The Wilderness Project buff.ly/ApwyfJX
#NewSpecies #Angola
Reposted by Christian Graca
“Having respect for animals makes us better humans.”
- Jane Goodall
- Jane Goodall
August 24, 2026 at 7:13 PM
“Having respect for animals makes us better humans.”
- Jane Goodall
- Jane Goodall
Reposted by Christian Graca
Forests provide critical thermal refuges for giant anteaters, shows a 25-year camera-trap study by WCS researchers in Bolivia. t.co/UO9tpqqVxP 🌎
August 18, 2026 at 3:05 PM
Forests provide critical thermal refuges for giant anteaters, shows a 25-year camera-trap study by WCS researchers in Bolivia. t.co/UO9tpqqVxP 🌎
Reposted by Christian Graca
Scientists are one step closer to developing a universal vaccine against the bacterium that causes pneumonia and meningitis
go.nature.com/4x5E36a
go.nature.com/4x5E36a
Universal vaccine for pneumococcal disease moves closer to reality
Nature - Targeting shared proteins could help to control bacterial subtypes that current vaccines do not protect against.
go.nature.com
August 15, 2026 at 5:13 PM
Scientists are one step closer to developing a universal vaccine against the bacterium that causes pneumonia and meningitis
go.nature.com/4x5E36a
go.nature.com/4x5E36a
Reposted by Christian Graca
This is a false catshark, Pseudotriakis microdon, named for catlike eyes. A bit soft around the middle — some might even say these ground sharks are flabby — and they move rather slowly, which led to another common name: “sofa shark.”
#DeepWonders, 1,086 m
#DeepWonders, 1,086 m
August 10, 2026 at 8:18 PM
This is a false catshark, Pseudotriakis microdon, named for catlike eyes. A bit soft around the middle — some might even say these ground sharks are flabby — and they move rather slowly, which led to another common name: “sofa shark.”
#DeepWonders, 1,086 m
#DeepWonders, 1,086 m
Reposted by Christian Graca
The world according to the Dodo.
A study in our Zoological Journal digitally reconstructs the Dodo's sensory world. It suggests a more flexible daily activity pattern, an enhanced sense of smell and a more tactile information through its large upper beak.
Read the full paper here: bit.ly/3U6Zi8O
A study in our Zoological Journal digitally reconstructs the Dodo's sensory world. It suggests a more flexible daily activity pattern, an enhanced sense of smell and a more tactile information through its large upper beak.
Read the full paper here: bit.ly/3U6Zi8O
August 10, 2026 at 9:00 AM
The world according to the Dodo.
A study in our Zoological Journal digitally reconstructs the Dodo's sensory world. It suggests a more flexible daily activity pattern, an enhanced sense of smell and a more tactile information through its large upper beak.
Read the full paper here: bit.ly/3U6Zi8O
A study in our Zoological Journal digitally reconstructs the Dodo's sensory world. It suggests a more flexible daily activity pattern, an enhanced sense of smell and a more tactile information through its large upper beak.
Read the full paper here: bit.ly/3U6Zi8O
Reposted by Christian Graca
Fires hit 70% of Araribóia Indigenous Land in 2024. Guajajara women responded — nurseries across 7 communities, native trees, ancestral knowledge. Restoring forest, birds, animals, and rivers together. Full story: buff.ly/HZfsHsz
📸 Rockefeller Foundation buff.ly/OLh9Mmg
#GuajajaraWomen
📸 Rockefeller Foundation buff.ly/OLh9Mmg
#GuajajaraWomen
August 7, 2026 at 1:00 AM
Fires hit 70% of Araribóia Indigenous Land in 2024. Guajajara women responded — nurseries across 7 communities, native trees, ancestral knowledge. Restoring forest, birds, animals, and rivers together. Full story: buff.ly/HZfsHsz
📸 Rockefeller Foundation buff.ly/OLh9Mmg
#GuajajaraWomen
📸 Rockefeller Foundation buff.ly/OLh9Mmg
#GuajajaraWomen
Reposted by Christian Graca
Found only in the forests of the eastern Democratic Republic of Congo, Rwanda, and Uganda, eastern gorillas are showing both the promise and the fragility of conservation.
August 5, 2026 at 5:57 PM
Found only in the forests of the eastern Democratic Republic of Congo, Rwanda, and Uganda, eastern gorillas are showing both the promise and the fragility of conservation.
Reposted by Christian Graca
First evidence of cougars reproducing in Minnesota in 100+ years — a mother and three kittens caught on trail cam near Voyageurs National Park. The strongest sign yet a native predator may be coming home. Full story: buff.ly/MlzUX1J
📸 Voyageurs Wolf Project buff.ly/hnOCEQz
#Cougars #Minnesota
📸 Voyageurs Wolf Project buff.ly/hnOCEQz
#Cougars #Minnesota
August 5, 2026 at 1:00 AM
First evidence of cougars reproducing in Minnesota in 100+ years — a mother and three kittens caught on trail cam near Voyageurs National Park. The strongest sign yet a native predator may be coming home. Full story: buff.ly/MlzUX1J
📸 Voyageurs Wolf Project buff.ly/hnOCEQz
#Cougars #Minnesota
📸 Voyageurs Wolf Project buff.ly/hnOCEQz
#Cougars #Minnesota
Reposted by Christian Graca
🦉 It's #OwlAwarenessDay! These #owls are from Atlante Ornitologico (1902). Contributed to BHL by the Research Library of @amnh.org: www.biodiversitylibrary.org/page/7879732... 📖
August 4, 2026 at 1:31 PM
🦉 It's #OwlAwarenessDay! These #owls are from Atlante Ornitologico (1902). Contributed to BHL by the Research Library of @amnh.org: www.biodiversitylibrary.org/page/7879732... 📖
Reposted by Christian Graca
Hungarian mathematician Paul Erdős’ conjectures have long fascinated mathematicians — and now, AI companies. OpenAI and Google DeepMind are solving Erdős problems with remarkable speed. But what does this mean for the field of mathematics? www.quantamagazine.org/why-the-lege...
August 4, 2026 at 3:46 PM
Hungarian mathematician Paul Erdős’ conjectures have long fascinated mathematicians — and now, AI companies. OpenAI and Google DeepMind are solving Erdős problems with remarkable speed. But what does this mean for the field of mathematics? www.quantamagazine.org/why-the-lege...
Reposted by Christian Graca
Hundreds of scientists are collaborating on a quest to count every species of insect in one expanse of the Amazon
go.nature.com/4pRzMjG
go.nature.com/4pRzMjG
Tiny patch of Amazon likely holds 40,000 insect species — many new to science
Megaproject involving hundreds of sites is cataloguing rainforest insects from the ground to the canopy.
go.nature.com
August 4, 2026 at 4:28 PM
Hundreds of scientists are collaborating on a quest to count every species of insect in one expanse of the Amazon
go.nature.com/4pRzMjG
go.nature.com/4pRzMjG
Reposted by Christian Graca
Published in the journal Science, a new study by NHM researchers shows that Mexico acted as a biodiversity "holding pen" for 10 million years ahead of the Great American Biotic Interchange that opened the floodgates between North and South America 2.8 million years ago.
10-million-year-long Mammal Layover in Mexico Primed the Pump for the Great American Biotic Interchange Between North and South America
Published in the journal Science, a new study by NHM researchers shows that Mexico acted as a biodiversity "holding pen" for 10 million years ahead of the Great American Biotic Interchange that…
go.nhm.org
July 31, 2026 at 6:30 PM
Published in the journal Science, a new study by NHM researchers shows that Mexico acted as a biodiversity "holding pen" for 10 million years ahead of the Great American Biotic Interchange that opened the floodgates between North and South America 2.8 million years ago.
Reposted by Christian Graca
On #WorldRangerDay, we honor the courage and dedication of rangers. From patrolling rangelands in Mongolia to supporting the monitoring of wildlife health in Congo to working alongside their communities in Bolivia, rangers are the eyes, ears, and heart of conservation. 🙏 🌏
July 31, 2026 at 12:22 PM
On #WorldRangerDay, we honor the courage and dedication of rangers. From patrolling rangelands in Mongolia to supporting the monitoring of wildlife health in Congo to working alongside their communities in Bolivia, rangers are the eyes, ears, and heart of conservation. 🙏 🌏
Reposted by Christian Graca
Pursuing poachers, sampling ice, and deep sea exploration: check out July's sharpest science shots, selected by Nature's photo team
go.nature.com/3U4kDQc
go.nature.com/3U4kDQc
The forensic traces that can help catch poachers — July's best science images
The month’s sharpest science shots, selected by Nature’s photo team.
go.nature.com
July 31, 2026 at 1:01 PM
Pursuing poachers, sampling ice, and deep sea exploration: check out July's sharpest science shots, selected by Nature's photo team
go.nature.com/3U4kDQc
go.nature.com/3U4kDQc
Reposted by Christian Graca
A few years ago, physicists at Fermi National Accelerator Laboratory in Illinois used a giant magnetic ring to measure precisely how much the muon wobbles. Now they’re puzzling over the way that this measurement clashes with older experiments. www.quantamagazine.org/physicists-s...
Physicists Solve a Muon Mystery. Now, Old Results Don’t Add Up. | Quanta Magazine
New calculations seem to have put a 25-year-old particle physics puzzle to rest. But they’ve also created a clash with other experimental results.
www.quantamagazine.org
July 29, 2026 at 2:55 PM
A few years ago, physicists at Fermi National Accelerator Laboratory in Illinois used a giant magnetic ring to measure precisely how much the muon wobbles. Now they’re puzzling over the way that this measurement clashes with older experiments. www.quantamagazine.org/physicists-s...
Reposted by Christian Graca
On #InternationalTigerDay, hope. In Indonesia’s Bukit Barisan Selatan NP, long-term monitoring in partnership with the government suggests the Sumatran tiger population in the park’s core zone is stable, the first essential step to recovery. There, and across the tiger’s range, we must keep it up.
July 29, 2026 at 12:57 PM
On #InternationalTigerDay, hope. In Indonesia’s Bukit Barisan Selatan NP, long-term monitoring in partnership with the government suggests the Sumatran tiger population in the park’s core zone is stable, the first essential step to recovery. There, and across the tiger’s range, we must keep it up.
Reposted by Christian Graca
A mathematical formula inscribed on a wall at the Maya site in Guatemala has revealed the name of an important Maya mathematician-astronomer for the first time
go.nature.com/4fiKSJM
go.nature.com/4fiKSJM
Mathematics formula found on Maya wall rivals insights of ancient masters
Nature - Mathematical texts from a Maya site in Guatemala identify an astronomer called Sak Tahn Waax.
go.nature.com
July 18, 2026 at 9:26 AM
A mathematical formula inscribed on a wall at the Maya site in Guatemala has revealed the name of an important Maya mathematician-astronomer for the first time
go.nature.com/4fiKSJM
go.nature.com/4fiKSJM
Reposted by Christian Graca
Palau's Melekeok community has reseeded 5,000 giant clams onto damaged coral reefs — with 13,000 more planned. Giant clams filter water, build habitat & boost biodiversity.
Full story: buff.ly/cZ8kVlX
📸 Francesco Ungaro on Pexels buff.ly/pb43NqC
#ReefRestoration #Palau #MarineConservation
Full story: buff.ly/cZ8kVlX
📸 Francesco Ungaro on Pexels buff.ly/pb43NqC
#ReefRestoration #Palau #MarineConservation
July 15, 2026 at 1:00 AM
Palau's Melekeok community has reseeded 5,000 giant clams onto damaged coral reefs — with 13,000 more planned. Giant clams filter water, build habitat & boost biodiversity.
Full story: buff.ly/cZ8kVlX
📸 Francesco Ungaro on Pexels buff.ly/pb43NqC
#ReefRestoration #Palau #MarineConservation
Full story: buff.ly/cZ8kVlX
📸 Francesco Ungaro on Pexels buff.ly/pb43NqC
#ReefRestoration #Palau #MarineConservation
Reposted by Christian Graca
A little more than 30 miles north of Downtown L.A., Bear Divide is a migratory bird corridor that sits at a low-elevation passageway in the San Gabriel Mountains, funneling large concentrations of migrating birds every spring. go.nhm.org/bear-divide
Fly the Bird Migration Super Highway at Bear Divide Banding Station
Discover the spectacle and the science happening at Bear Divide Banding Station
go.nhm.org
June 29, 2026 at 11:04 PM
A little more than 30 miles north of Downtown L.A., Bear Divide is a migratory bird corridor that sits at a low-elevation passageway in the San Gabriel Mountains, funneling large concentrations of migrating birds every spring. go.nhm.org/bear-divide
Reposted by Christian Graca
“It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living.”
— Sir David Attenborough
— Sir David Attenborough
June 27, 2026 at 5:00 PM
“It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living.”
— Sir David Attenborough
— Sir David Attenborough
Reposted by Christian Graca
“I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.”
— Sir Isaac Newton
— Sir Isaac Newton
June 27, 2026 at 11:00 PM
“I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.”
— Sir Isaac Newton
— Sir Isaac Newton
Reposted by Christian Graca
In the United States, there are:
13,850 McDonald's locations
16,800 Starbucks locations
12,200 bookstores (3,200 of which are independent)
but 17,600 public libraries.
If you include school & university libraries, that climbs to 125,000 libraries.
That's 9 libraries in the US for every McDonald's.
13,850 McDonald's locations
16,800 Starbucks locations
12,200 bookstores (3,200 of which are independent)
but 17,600 public libraries.
If you include school & university libraries, that climbs to 125,000 libraries.
That's 9 libraries in the US for every McDonald's.
June 26, 2026 at 2:09 PM
In the United States, there are:
13,850 McDonald's locations
16,800 Starbucks locations
12,200 bookstores (3,200 of which are independent)
but 17,600 public libraries.
If you include school & university libraries, that climbs to 125,000 libraries.
That's 9 libraries in the US for every McDonald's.
13,850 McDonald's locations
16,800 Starbucks locations
12,200 bookstores (3,200 of which are independent)
but 17,600 public libraries.
If you include school & university libraries, that climbs to 125,000 libraries.
That's 9 libraries in the US for every McDonald's.