# Abraham (Avi) Loeb · Person

> Harvard astrophysicist; proposed the lightsail reading. In 1I/'Oumuamua and 3I/ATLAS.

Source: https://mysteriesdept.com/mysteries/oumuamua/people/FIG0CSKBRJJ6DGG/abraham-avi-loeb  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)[People](https://mysteriesdept.com/people)Abraham (Avi) Loeb

Person · in 2 mysteries

# Abraham (Avi) Loeb

Harvard astrophysicist; proposed the lightsail reading **Born 1962.**

[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)[2 events][2 sources]

Abraham (Avi) Loeb is an Israeli astrophysicist (1962-) (born 1962), and appears in the record of 1I/'Oumuamua and 3I/ATLAS as Harvard astrophysicist; proposed the lightsail reading.

Two events on the site involve Loeb, from Bialy and Loeb propose radiation pressure and raise the lightsail possibility (Oct 2018) to Preprint asks whether 3I is alien technology (16 Jul 2025).

One question rest in part on what Loeb did or said, among them “Does any observation of 'Oumuamua require a non-natural explanation?”, which stands answered.

Written from the site's records. [Improve it](https://mysteriesdept.com/developers)

## In the mysteries

**1I/'Oumuamua**

Harvard astrophysicist; proposed the lightsail reading · 1 event

[The mystery ](https://mysteriesdept.com/mysteries/oumuamua)

[Does any observation of 'Oumuamua require a non-natural explanation?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKC0CJ74DR/does-any-observation-of-oumuamua-require-a-non-natural)Answered: Answered

**3I/ATLAS**

1 event

[The mystery ](https://mysteriesdept.com/mysteries/3i-atlas)

## What Abraham did 2

Oct 2018[Bialy and Loeb propose radiation pressure and raise the lightsail possibility](https://mysteriesdept.com/mysteries/oumuamua/events/EVT0CSKBX700CH6/bialy-and-loeb-propose-radiation-pressure-and-raise-the)

with [Shmuel Bialy](https://mysteriesdept.com/mysteries/oumuamua/people/FIG0CSKBRTC26ZZ/shmuel-bialy)

16 Jul 2025[Preprint asks whether 3I is alien technology](https://mysteriesdept.com/mysteries/3i-atlas/events/EVT0DFQ70AS22TA/preprint-asks-whether-3i-is-alien-technology)

with [Adam Hibberd](https://mysteriesdept.com/mysteries/3i-atlas/people/FIG0DFQ70ARYQTS/adam-hibberd)

## Worked with 2

[SB

**Shmuel Bialy**

1I/'Oumuamua

](https://mysteriesdept.com/mysteries/oumuamua/people/FIG0CSKBRTC26ZZ/shmuel-bialy)[AH

**Adam Hibberd**

3I/ATLAS

](https://mysteriesdept.com/mysteries/3i-atlas/people/FIG0DFQ70ARYQTS/adam-hibberd)

## Sources 2

[Could Solar Radiation Pressure Explain 'Oumuamua's Peculiar Acceleration?](https://mysteriesdept.com/sources/SRC0CSKB6R811G8/could-solar-radiation-pressure-explain-oumuamuas-peculiar)

SRC

[Is the Interstellar Object 3I/ATLAS Alien Technology?](https://mysteriesdept.com/sources/SRC0CSKBET26693/is-the-interstellar-object-3i-atlas-alien-technology)

SRC

## Cite it

```
Mysteries Department. (2026). Abraham (Avi) Loeb [Person FIG0CSKBRJJ6DGG]. https://mysteriesdept.com/r/FIG0CSKBRJJ6DGG
```

![Portrait of Abraham (Avi) Loeb](https://mysteriesdept.com/files/v/75755f8b02fe1bc3a9be432e28970b79f8eab245306d04ffdc82f0651f7eb377/w800)

 Christopher Michel, Wikimedia Commons, CC BY-SA 4.0

Key

**FIG** 0CSKBRJJ6DGG

Record

Person

Born

1962-02-26

Occupation

Harvard astrophysicist; proposed the lightsail reading

Identity

Israeli astrophysicist (1962-)

In

[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)

Version

2

Added by

[apollo](https://mysteriesdept.com/u/apollo)

[ Wikipedia](https://en.wikipedia.org/wiki/Avi_Loeb)[ wikidata.org](https://www.wikidata.org/wiki/Q2821842)[ Wikidata](https://www.wikidata.org/wiki/Q2821842)

**How this page is made.** The dates, occupation and identity line come from Wikidata (CC0), checked 31 Oct 2026; the portrait is a free file from Wikimedia Commons. Everything else is the site's own record of what this person did in the mysteries.

The record

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[JSON](https://mysteriesdept.com/api/v1/records/FIG0CSKBRJJ6DGG)