---
license: mit
language: 
- en
pipeline_tag: fill-mask
widget:
- text: The Chandra X-ray Observatory (CXO) is a Flagship-class space telescope launched aboard the Space Shuttle Columbia during STS-93 by NASA on July 23, 1999
---

# astroBERT base model 
Pretrained model on English language using a masked language modeling (MLM) and next sentence prediction (NSP) objective.  
It was introduced in [this paper at ADASS 2021](https://arxiv.org/abs/2112.00590).  
This model is cased.